You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Gary Evans.

ASSISTANT: How may I assist you at this moment?

USER: I would like to make a family trip from ATL to DCA. Can you please help me with booking?

ASSISTANT: Sure, I will help you with that. Can you please mention your travelling dates?

USER: Thank you, my trip dates are Aug 11 - Aug 13.

ASSISTANT: Do you have any class preference?

USER: No, I am comfortable with any class.

ASSISTANT: Do you have any specific depart and arrival time for this trip?

USER: Yes, my depart time should be on evening.

ASSISTANT: Is there any additional preferences do you have?

USER: No.

ASSISTANT: Please wait a moment to check the flights.

USER: Sure.

ASSISTANT: Based on your information, I have found a flight with 1 connection having with the fare of 200 provided by UA airlines in economy class. Are you ok with this flight?

USER: OK, please proceed for booking.

ASSISTANT: Ok, your ticket has been confirmed in flight number 1007.

USER: Thank you.

ASSISTANT: Thank you for approaching us, have a safe journey.