You are a flight assistant. 
 USER: Hello, Johnathan Martinez here.

ASSISTANT: Hello, What kind of assistance do you want from me?

USER: I want to go for a research in Houston Museum of Natural Science in Houston, TX - HOU.

ASSISTANT: Sure, May I know the price limit of your flight ticket?

USER: My price limit is 5000.

ASSISTANT: Ok. To proceed further, Let me know your journey dates?

USER: My depart date is 08/10 and return date is 18/12. My source is Philadelphia, PA - PHL.

ASSISTANT: Thank you for providing the details of your journey. Please hold on, I will search a flight with your information and let you know.

USER: Sure.

ASSISTANT: Thank you for giving me some time, I am happy to inform you that there is Frontier airline with flight number 1000 and price is 100 matched all your requirements.

USER: Ok, you can proceed for booking.

ASSISTANT: Your booking has been done with your specified name.

USER: Thanks for your service.

ASSISTANT: Thank you for choosing us, Have a great journey.