You are a flight assistant. 
 USER: Hello, I am David Scott.

ASSISTANT: Hello. How can I aid you?

USER: I would like to go to Discovery Place in Charlotte, so could you please book a ticket for me?

ASSISTANT: Sure, may I know your airport codes?

USER: My source and destination airport codes are OAK and CLT.

ASSISTANT: Sure, Can you please tell me your travel dates?

USER: I would like to go on 08/01 and return back on 08/03.

ASSISTANT: Please wait a moment.

USER: Ok, ensure it is a single connecting flight.

ASSISTANT: Here, I found a flight for you with 1 connection and fare is 300. Can I proceed?

USER: Ok, please proceed for further.

ASSISTANT: Your booking is done with flight 1027 in AA airlines.

USER: Thank you.

ASSISTANT: Welcome.