You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: I am John Mitchell. Can you help me in booking my flight ticket from DFW to CLT?

ASSISTANT: Sure, may I know your trip dates?

USER: My trip dates will be May 27th to May 29th.

ASSISTANT: Do you have any connection limit?

USER: I need a connecting flight.

ASSISTANT: Is there any class preference?

USER: I need a economy class flight.

ASSISTANT: Do you have any particular airline preference?

USER: My airline preference is normal cost.

ASSISTANT: Is there any other requirements?

USER: No.

ASSISTANT: Please wait a minute.

USER: Sure.

ASSISTANT: We found an economy class ticket in American Airlines with fare 200 and it is a connecting flight. Can I book your ticket?

USER: Please proceed.

ASSISTANT: Your booking is reserved with flight number 1002.

USER: Thank you.

ASSISTANT: Thank you for contacting us.