You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how can I help you?

USER: Please book a ticket from Washington DC-IAD to Charlotte, NC-CLT.

ASSISTANT: Sure, we are here to help you. Let me know when you are willing to travel?

USER: Departure date is 06/05 and 06/07 is my return.

ASSISTANT: May I know your name to book a flight ticket?

USER: My name is Shirley Young.

ASSISTANT: Ok, wait for a while.

USER: Sure.

ASSISTANT: We found Frontier airline with connecting flight and number 1002 fare of 100. Shall I confirm it?

USER: Please book a ticket.

ASSISTANT: Your ticket has been confirmed.

USER: Thanks.

ASSISTANT: Thanks for approaching us.