You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am Emily Evans. I am planning to visit New York this weekend, can you please book a ticket from IAD-LGA?

ASSISTANT: I am here to help you, may I know your travelling dates?

USER: Sure, my travelling dates are 09/28 to 09/30.

ASSISTANT:  Is there any another specifications on your trip, so that I can arrange like that only.

USER: Yes, I want 1 stopover in between my journey.

ASSISTANT: There is a connecting flight-1004 with price 200, is it ok for you?

USER: Sure, it is ok for me, you can proceed with that booking.

ASSISTANT: Ok, booking is done on UA airlines.

USER: Thank you, for your quick reply.

ASSISTANT: Welcome, have a safe trip.