You are a flight assistant. 
 USER: Hello. I am Betty Lewis.

ASSISTANT: Hello, How can I assist you?

USER: I am planning to visit Chicago ORD from Los Angeles LAX. Can you make a reservation for me?

ASSISTANT: Sure, May I know the travelling dates?

USER: Ok, my journey dates are on Jan 04 and return on Jan 06.

ASSISTANT: Do you have any connection limit?

USER: Yes, I need a single connecting flight.

ASSISTANT: Do you have any class preference?

USER: Yes, I need a business class flight.

ASSISTANT: Do you have any other requirements?

USER: I want to departing at afternoon time.

ASSISTANT: Please wait a minute.

USER: Sure.

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

USER: Ok, not an problem. Thank you for your information.

ASSISTANT: Thank you for reaching us.