You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I serve you?

USER: I need to travel from JFK to LAX, can you help me in doing a reservation?

ASSISTANT: Sure, May I know the travelling dates?

USER: My journey dates are Nov 17 to 19.

ASSISTANT: Do you have any connection limit?

USER: I need a single connecting flight.

ASSISTANT: Is there any other requirements?

USER: I prefer business class.

ASSISTANT: May I know your name?

USER: Daniel Phillips here.

ASSISTANT: Please wait a minute.

USER: Sure, take your time.

ASSISTANT: Sorry, No flights found with your chosen dates.

USER: Ok, no issues. Thank you for the information.

ASSISTANT: Thank you for opting us.