You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: My name is Nicholas Hill.

ASSISTANT: Nice to meet you Hill.

USER: I would like to attend my brother's marriage in Washington, can you please help me in booking a flight ticket?

ASSISTANT: Sure, may I know the complete travel details?

USER: My airport codes are SFO and DCA. The dates are from 06/11 to 06/13.

ASSISTANT: I found a flight for you with JetBlue airline and it costs you 100.

USER: Ok, please confirm the ticket.

ASSISTANT: Your ticket has been booked.

USER: Ok, thank you for your help.

ASSISTANT: Thank you for reaching us. Have a safe flight.