You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Donald Johnson.

ASSISTANT: How may I aid you?

USER: I am planning to attend music concert at IAH, can you please help me with booking a flight ticket from HOU?

ASSISTANT: Sure, may I know your travelling dates please?

USER: Sure, I would like to take off on 08/09 and return on 08/11.

ASSISTANT: Wait a moment please.

USER: Ok, but please make sure that the price limit does not exceed 500.

ASSISTANT: Spirit airlines is available in your route with the ticket fare of 100, shall I proceed with the booking?

USER: Yes, please proceed with the booking.

ASSISTANT: Your ticket is booked with the flight-1003.

USER: I appreciate your help, thank you.

ASSISTANT: Thank you for reaching us.

USER: You are welcome.