You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: My name is Robert Walker, I want to book a flight from Los Angeles to attend a meeting. Can you book a connecting flight for me?

ASSISTANT: Sure, I can help you with that. May I know your source and destination airport codes please?

USER: My source point is LAX and my destination is PHX.

ASSISTANT: Can you please provide your planned travel dates?

USER: I will travel on Mar 28 and return on Mar 30.

ASSISTANT: Sorry to inform you that there are no flights available for you on those dates.

USER: Ok, thank you for the information.

ASSISTANT: Thank you for choosing us.