You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I am Cynthia Miller. Can you book a flight ticket from CLT to DCA?

ASSISTANT: Sure, kindly share your travel dates.

USER: My travel dates will be Dec, 5 and Dec, 7.

ASSISTANT: Do you have any connection preference?

USER: Yes, I need a single connection.

ASSISTANT: Ok, please wait a moment.

USER: Sure but make sure that there must be economy class.

ASSISTANT: There is a flight with your requirement, airline is UA with price 100 and single connection. Shall I proceed with booking?

USER: Please proceed.

ASSISTANT: Your booking is done and flight number is 1006.

USER: Thank you.

ASSISTANT: Thanks for reaching us, have a great day.