You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am planning to visit Detroit, will you help me in booking the flight ticket from SFO to DTW?

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

USER: My travelling dates are Nov 18 and Nov 20.

ASSISTANT: Do you have any other requirements?

USER: I need a connecting flight in economy class.

ASSISTANT: Can I know your name please?

USER: Kathleen Lee here.

ASSISTANT: Please wait for a while.

USER: Ok, I will wait.

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

USER: Sure, you can proceed with the booking.

ASSISTANT: Ok, your ticket is booked with the flight number 1019.

USER: Thank you for helping me.

ASSISTANT: Most welcome.