You are a flight assistant. 
 USER: Hello. I am Carolyn Robinson.

ASSISTANT: Hello. How can I assist you?

USER: I want to attend an event in Washington. Can you book a ticket from PHX to DCA?

ASSISTANT: Ok, may I know your travelling dates?

USER: I want to travel in the flight on 10/13 and 10/15.

ASSISTANT: Here is a flight ticket with fare 200 and 1010 as flight number.

USER: Proceed with booking.

ASSISTANT: Ok, your booking is done.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.