You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER:  I want to celebrate my birthday at DCA, can you please avail me a flight ticket from IAD?

ASSISTANT: Sure, please provide your journey dates.

USER: My travelling dates are from Nov,10 and Nov,12.

ASSISTANT: Ok, Do you have any class preference?

USER: No.

ASSISTANT: Ok, Kindly mention your connection limit.

USER: My connecting limit is maximum which is available.

ASSISTANT: Ok, Is there any other preferences?

USER: No.

ASSISTANT: Thank you for providing details, we found a connecting flight in 1015 United Airlines with a fare of 200. Can I proceed for booking?

USER: Please proceed with the reservation.

ASSISTANT: May I know your name to proceed further?

USER: Myself Catherine Martin.

ASSISTANT: Your ticket has been booked.

USER: Thank you for reserving my flight ticket.

ASSISTANT: Thank you for reaching us.