You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. May I know your good name please?

USER: Myself Gregory Thomas. I want to book a flight please help me.

ASSISTANT: OK Gregory, Can you please tell me travelling deatails of your journey ?

USER: My journey is from 05/02 to 05/04. With the airport codes IAD to DCA.

ASSISTANT: OK, please wait for a moment.

USER: No problem.

ASSISTANT: Thank you for waiting, there is a flight 1019 in Delta airline has the price 100 and the connections limit is 1. Are you fine with these details?

USER: Sure, book it.

ASSISTANT: Now your ticket has been booked.

USER: Thank you for booking.

ASSISTANT: Thank you, have a safe journey.