You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I serve you at this moment?

USER: Can you book a flight from SFO to JFK?

ASSISTANT: Sure, may I know your travelling dates?

USER: I will fly on Feb 27 and return on Feb 29.

ASSISTANT: Ok, do you need a lay by in between the journey?

USER: I prefer a connecting flight.

ASSISTANT: May I know your good name please?

USER: My name is Mark Baker.

ASSISTANT: We found a Southwest Airlines with fare of 200 and a lay by in between the journey matches your schedule.

USER: Please proceed with booking.

ASSISTANT: Your ticket has been confirmed with flight number 1008.

USER: Thank you.

ASSISTANT: Thank you for reaching us.