You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I support you?

USER: I am Richard Lee. I need to book a flight ticket with single connection, can you help me for booking a flight ticket please?

ASSISTANT: Sure, I am glad to help you, Do you have any price limitations?

USER: Yes, I need price limit fair of 500.

ASSISTANT: OK, Please provide your source and destination details?

USER: Ok, my source point is NC-CLT and destination point is CA-SFO.

ASSISTANT: OK, Please kindly provide your journey dates?

USER: I would like to travel from 05/10 to 05/12.

ASSISTANT: Please wait for few minutes.

USER: Sure.

ASSISTANT: Thank you for waiting, Sorry to inform there are no flights found on your scheduled dates.

USER: Thanks for your information.

ASSISTANT: Thank you for reaching us.