You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you now?

USER: I am Nicole Wright. Can you help me to book a flight from IAD on 03/19?

ASSISTANT: Sure, can you please mention the destination airport code?

USER: My preferred destination airport code is DTW.

ASSISTANT: Do you want any return ticket?

USER: I would like to return on 03/21.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: There is a flight with 1 connection has the price 100. Can I proceed?

USER: Yes, proceed with booking.

ASSISTANT: Your booking is done in 1025, have a safe journey.

USER: Thank you for your help.

ASSISTANT: Thank you for approaching us.