You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I guide you?

USER: Can you please help me in booking the flight ticket from IAD to MSP?

ASSISTANT: Sure. Can I know your travelling dates?

USER: My travel dates are Dec 13 and Dec 15.

ASSISTANT: Do you need any break?

USER: I need a single connection flight.

ASSISTANT: On which name should I book the flight ticket?

USER: Donald Thomas.

ASSISTANT: Is there any other requirements?

USER: I prefer to travel in economy class.

ASSISTANT:  Ok, Give me a minute.

USER: Ok.

ASSISTANT: We found a connecting flight with an Spirit airlines, flight number:1017.

USER: Please proceed for booking.

ASSISTANT: Your flight ticket has been reserved with an connecting flight.

USER: Thank you for the help.

ASSISTANT: Thank you for picking us.