Need someone to customize plugin

I purchased plugin via themeforest. I want you to customize it and make it according to my requirements plugin URL: [login to view URL] Here is link to my site : [login to view URL] What I want you to do is that: 1) Change "Distance" Tab Name to "One way" 2) Remove "Flat rate" Tab and replace it with duplicate of one way and its name should be "Round trip" 3) on all booking conditions, If user sets pickup or drop off location as "Airport/ Denver Airport" then it should show select menu with names of airlines. If I select any airline then I want there text box with name "Flight number" where user will add flight number. please refer to [login to view URL] 4)For the one way, you say that on the bottom there are two options of transfer type. For the one way, it should show "one way" option only. and for the round trip tab, it should show "return" option only. 5) Currently prices are not working as I want. For the one way and round trip. It should cost $5/mile for the first 20 miles. after it, It should charge $3.5/ mile 6) Hourly bookings: Please I need to set booking from minimum 3 hour and the rate of per hour service is $120 7) I need passenger selection on Select vehicle page. All of the changes you will do must connect with plugin because plugin will send email and sms to both client and admin NOTE: Please only bid if you can do this. Because I have already wasted my time with some people and they are unable to achieve what I want. Thank you