You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: I am Betty Johnson. I need to go  Orlando to meet my friend so please help me with flight ticket booking from LAS to MCO.

ASSISTANT: Sure, can you share your trip dates?

USER: Thank you. I have planned my travel dates as Dec 03 and Dec 05.

ASSISTANT: Do you have any preferences?

USER: Yes, I would like to return in afternoon time only.

ASSISTANT: Sorry, there is no flight on your given dates.

USER: Oh! It is sad to hear. Anyway, thank you for  your time.

ASSISTANT: Thank you for reaching us.

USER: Most welcome.