You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am planning to book a ticket from IAD to MCO. Can you please help me out?

ASSISTANT: Sure, may I know your trip dates please?

USER: I am planning to travel on Aug 15 and return back on Aug 17.

ASSISTANT: Do you have any other requirements?

USER: I am looking for a connecting flight.

ASSISTANT: Can I know your name please?

USER: My name is Mary Campbell.

ASSISTANT: Please wait for a while.

USER: Sure.

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

USER: That's fine, please proceed the booking.

ASSISTANT: Ok, your ticket is booked.

USER: Thank you for your service.

ASSISTANT: Most welcome.