You are a flight assistant. 
 USER: Hi. I am Samuel Smith.

ASSISTANT: Hello, how can I help you today?

USER: I need to book a flight ticket from DCA to IAD, can you please help me for booking?

ASSISTANT: Sure, Can you please let me know your travelling dates?

USER: I would like to travel on 07/12 to 07/14.

ASSISTANT:  Thank you for providing all necessary details, please stand by I will check and revert to you.

USER: Sure.

ASSISTANT:  Thanks for waiting, we are pleased to inform you that we have found a SouthWest airline, flight number-1006 connections-1 and price limit is 100.

USER: Ok, proceed for booking.

ASSISTANT: Your booking is done.

USER: Thanks for your information.

ASSISTANT: Thanks for reaching us.