You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Lisa Edwards.

ASSISTANT: How can I help you?

USER: Can you book a flight ticket to Los Angeles, LAX on 03/22?

ASSISTANT: Sure, may I know when you want to return?

USER: I will be return on 03/24.

ASSISTANT: Ok, do you need any halt in between your journey?

USER: Yes, I need a connecting flight.

ASSISTANT: Can I know your source code please?

USER: I am boarding at Washington, IAD.

ASSISTANT: Wait a minute please.

USER: Sure.

ASSISTANT: Thank you for waiting.

USER: Ok.

ASSISTANT: We found a flight with number 1014 and airline AA at a price of 200 with 1 connection. Shall I proceed?

USER: Ok, you can proceed.

ASSISTANT: Sure, your booking is done.

USER: Thank you.

ASSISTANT: Thank you for reaching us, have  a nice day.