You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you out?

USER: I am Timothy Johnson, I need to book a flight ticket to DCA from JFK.

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

USER: Thank you, my travelling dates are 04/25 and 04/27.

ASSISTANT: There is a flight with connection 1 and price 100, can I proceed with this flight?

USER: Yes, please proceed with the booking.

ASSISTANT: Ok, your ticket has been booked with flight number 1027.

USER: Thank you for your assistance.

ASSISTANT: Thank you for reaching us.