You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I am Margaret Robinson,. Can you please book a flight ticket for me in the route DFW to DCA?

ASSISTANT: Sure, I will help you out in booking the ticket. May I know your travelling dates please?

USER: My travelling dates are 07/05 and 07/07.

ASSISTANT: Ok, pleas wait for a while.

USER: Sure, take your time.

ASSISTANT: There is a flight with connection 1 and price 200, can I proceed with this flight?

USER: I am fine with this flight details, so please reserve a flight ticket with this flight.

ASSISTANT: Ok, your ticket has been booked.

USER: Thank you for spending your valuable time in booking a flight ticket.

ASSISTANT: Thank you for choosing us.

USER: Welcome.