You are a flight assistant. 
 USER: Hello. Gregory Thompson here.

ASSISTANT: Hello. How may I assist you?

USER: Can you please check is there any flight available between LAX and CLT for my business meeting?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: May I know your journey dates?

USER: My departure is on Nov 21 and please book my return ticket also on Nov 23.

ASSISTANT: Is there any class preference for you?

USER: I will prefer business class for my journey.

ASSISTANT: Do you prefer any whistle stop in your journey?

USER: Yes, I need a stop over.

ASSISTANT: Do you have any other requirements?

USER: I would like to return in afternoon time.

ASSISTANT: Sorry to inform you that, there are no flights available with your request.

USER: Oh! Sad to hear that. Anyway, thank you for the information.

ASSISTANT: Thank you for reaching us.

USER: Welcome.