You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I am Edwards Hall, I want to book a flight to Washington DC-IAD to meet my cousin. Can you book a flight with in fare of 5000?

ASSISTANT: Sure, may I know your travel dates?

USER: I will fly on 09/11 and return on 09/13.

ASSISTANT: Do you prefer any halt in between your journey?

USER: Yes, I need a halt in between my journey.

ASSISTANT: May I know your origin airport code?

USER: My origin airport code is TX-HOU.

ASSISTANT: We found a flight on your details with airline Hawaiian, flight number: 1015. Shall I book this ticket?

USER: Please proceed with booking.

ASSISTANT: Your ticket has been booked.

USER: Thank you for helping me.

ASSISTANT: Thank you so much.