You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. May I know how best I can help you today?

USER: Can you please help me in reserving a flight ticket in business class?

ASSISTANT: Sure, we are gleeful to assist you in booking.

USER: Thank you.

ASSISTANT: Can I know from where would you like to take off and land on?

USER: I would like to start from BOS to reach DFW.

ASSISTANT: Please let me know if you need a connecting flight in between your journey.

USER: Yes, I need a connecting flight in between my journey.

ASSISTANT: Kindly mention your planned travelling dates to proceed further.

USER: My planned travelling dates are from Feb 16th to Feb 18th.

ASSISTANT: May I know if you have any other comforts in between your journey?

USER: No other comforts.

ASSISTANT: To proceed further, can I have your name please?

USER: I am Patrick King.

ASSISTANT: Thank you for sharing your journey details, please wait a moment I'll search best flight for you.

USER: Ok.

ASSISTANT: Thank you for waiting, we found an economy class ticket providing by Jet Blue airline with the flight number-1010. Shall I book the connecting flight?

USER: Can you please check the ticket in business class?

ASSISTANT: Sorry for the inconvenience, there are no flights found with the business class tickets.

USER: Ok, no issues. Thank you.

ASSISTANT: Thank you for approaching us.