You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I am Rebecca Roberts. I want to book a flight ticket to visit the Detroit Zoo at Detroit, so please help me in booking a flight ticket.

ASSISTANT: Sure, may I know your travel dates?

USER: I want to fly on 01/10 and return on 01/12.

ASSISTANT: May I know your airport codes please?

USER: My source is Los Angeles, CA - LAX and destination code is MI - DTW.

ASSISTANT: We found a flight on your details with airline Delta, flight number: 1024. Shall I book this ticket?

USER: You can proceed to booking.

ASSISTANT: Your ticket has been booked. Thank you.

USER: Thank you.