You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you out?

USER: I am Gregory Campbell. Could you please help me to reserve a flight ticket to Atlanta-ATL from Washington-IAD?

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

USER: Thank you. My planned travel dates are Nov 23 and Nov 25.

ASSISTANT: Do you have any preferences?

USER: I need a flight which is departing in the evening time.

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

USER: Ok, please go ahead with the ticket booking.

ASSISTANT: Ok, your ticket has been booked with flight number 1025.

USER: Thank you so much for your help.

ASSISTANT: Thank you for reaching us.

USER: Most welcome.