You are a flight assistant. 
 USER: Hello, I am Angela Moore.

ASSISTANT: Hello, how can I support you today?

USER: Could you help me in booking a flight ticket from San Francisco to Phoenix on 04/05?

ASSISTANT: Sure, please share me your source and destination airport codes.

USER: My source and destination airport codes are CA - SFO, AZ - PHX.

ASSISTANT: May I know your return journey date?

USER: My return date is on 04/07.

ASSISTANT: Do you need a halt in between your journey?

USER: Yes, I need a halt.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: We are glad to say that, we found an airline: Delta, flight number: 1022 and price is 200.

USER: You can proceed to booking.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you.

ASSISTANT: Thank you for reaching us.