You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I hep you today?

USER: Ryan Walker here. Could you book my ticket from HOU for a round trip?

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

USER: My trip dates are July 12 and July 14.

ASSISTANT: Do you have any other specifications?

USER: I can afford 500 for my ticket.

ASSISTANT: There is a flight-1015 available in Jet Blue airline and the ticket price is 100. Shall I book it?

USER: Please book my ticket.

ASSISTANT: Ryan Walker, your booking is done successfully in economy class.

USER: Thank you for assisting me.

ASSISTANT: Thank you for choosing our agency, have a safe journey.