You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Charles Baker here.

ASSISTANT: How may I help you out?

USER: I want to reserve a flight ticket for my journey to Atlanta - ATL, can you please check for the flights from DCA?

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

USER: My journey dates are from 05/16 to 05/18.

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

USER: You may proceed with confirmation of my reservation with this flight.

ASSISTANT: Ok, your ticket has been booked with flight number 1009.

USER: Thank you for helping me with booking.

ASSISTANT: Thank you for choosing us.

USER: Most welcome.