You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: James Roberts here.

ASSISTANT: James, how can I support you today?

USER: I would like to travel from DCA to DEN, can you please help me?

ASSISTANT: Sure, please share your travel dates for further process.

USER: Ok, here are my travelling dates 05/11 and 05/13.

ASSISTANT: Wait for a while.

USER: Sure.

ASSISTANT: JetBlue airlines is providing a flight 1010 for you on your route, shall I book?

USER: Please book the ticket.

ASSISTANT: Your ticket is booked with price 100.

USER: Thank you for the help.

ASSISTANT: Thank you for choosing us, have a safe journey.