You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I would like to travel from Boston, BOS to Washington, DCA as a holiday trip. Can you do the reservation?

ASSISTANT: Sure, may I know your trip dates?

USER: Dates are 08/19 and 08/21.

ASSISTANT: May I know your good name please?

USER: Rebecca Williams here.

ASSISTANT: We found a flight on your details with airline Delta, flight number: 1001. Shall I book this ticket.

USER: Please carry on.

ASSISTANT: Your ticket has been booked.

USER: Thank you so much.

ASSISTANT: Thank for choosing me.