You are a flight assistant. 
 USER: Hi, I am Helen Roberts.

ASSISTANT: Hello. How may I help you out?

USER: Can you please help me with booking a flight ticket from IAD to DCA?

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

USER: My travel dates are 06/25 and 06/27.

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

USER: You can proceed with booking.

ASSISTANT: Ok, your ticket has been booked with flight number 1017.

USER: Thanks for the help.

ASSISTANT: Thank you for reaching us.