You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello, how may I help you today?

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

ASSISTANT: Sure, may I know your journey dates?

USER: Departure is on 06/10 and 06/12 is return date.

ASSISTANT: May I know your good name?

USER: I am Betty Hill.

ASSISTANT: Do you want connecting flight?

USER: Yes, please provide connecting flight.

ASSISTANT: I found a UA airline, flight number: 1004, price: 100 with one connection.

USER: Please book a flight.

ASSISTANT: Your flight ticket has been confirmed.

USER: Thanks.

ASSISTANT: Thank you for choosing us.