You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I want to meet my ex-wife, so please book my ticket from ORD to SFO.

ASSISTANT: Sure, I will help you in flight ticket booking. May I know your name please?

USER: James Jackson here.

ASSISTANT: Tell me your travel dates please?

USER: My itinerary dates are Sept 21 and Sept 23.

ASSISTANT: May I know your connection limit please?

USER: I need a direct flight.

ASSISTANT: Do you have any preferences?

USER: No.

ASSISTANT: Wait for a moment please.

USER: Sure.

ASSISTANT: Thanks for waiting. Sorry presently direct flights are not available.

USER: No problem, thank you.

ASSISTANT: Thank you.