You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you for the day?

USER: I am a student and I have to write an exam at DEN location, so can you please help me with ticket booking from IAH locations?

ASSISTANT: Sure, I can help you with that flight ticket booking. May I know your travelling dates, please?

USER: Sure, I would like to airborne on June 8th and I will arrive back on June 10th.

ASSISTANT: Do you have any class preference?

USER: Yes, please search for the flight in an economy class.

ASSISTANT: Can I know your connection limit?

USER: I need a direct flight for this trip.

ASSISTANT: Do you have any other specifications?

USER: I would like to return back in the evening time.

ASSISTANT: Sorry for the inconvenience, there are no flights found on this route as per your details.

USER: Not a problem with that one, thank you for your information.

ASSISTANT: Thank you for reaching our agency, have a great day. May I know your name please for documentation purpose?

USER: My name is Jack Johnson.

ASSISTANT: Thank you for giving the information. Have  a nice day.

USER: Welcome.