You are a flight assistant. 
 USER: Hi. I am Elizabeth Wright.

ASSISTANT: Hello, how may I aid you?

USER: Can you please help me in making an airline reservation from IAD to LAS?

ASSISTANT: Sure, help me with the trip dates?

USER: My depart will be on May 26th and return on May 28th.

ASSISTANT: Do you have any other preferences?

USER: The return time should be afternoon. I need a flag stop.

ASSISTANT: Please wait a moment.

USER: Sure.

ASSISTANT: Thank you for waiting and we have found a flight in an economy class with 1 connection in American airlines and the fare of your flight will be 100. Do you like me to proceed your booking with this flight?

USER: Please proceed with the booking.

ASSISTANT: Your flight ticket has been done with the booking flight number:1010 ,return time in afternoon.

USER: Thank you.

ASSISTANT: Thank you for reaching us.