You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am Thomas Wright want to visit San Francisco, can you book a ticket with price under 1000?

ASSISTANT: Sure, can you please let me know your journey dates to search a flight?

USER: Sure, I want to travel on 08/10 and return back on 08/12.

ASSISTANT: May I know your preferred source and destination airport codes?

USER: Yes, my airport codes are MCO and SFO.

ASSISTANT: There is a flight with 1 connection from Southwest airlines, shall I proceed?

USER: Yes, proceed with my booking.

ASSISTANT: Ok, your booking is done.

USER: Thank you.

ASSISTANT: Welcome.