You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I am Christine Walker, I want to travel from DCA to IAD. Would you please help me for booking?

ASSISTANT: Please provide your travelling dates.

USER: My travelling dates are 07/01 and 07/03.

ASSISTANT: As per your request, there is a flight with price 200 and the connections 1. Shall I proceed for booking?

USER: Ok, please book it.

ASSISTANT: Your ticket is booked.The flight number is 1008.

USER: Thank you for booking.

ASSISTANT: Welcome, have a nice day.