You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I need a flight from LAX to PHX, can you help me with that?

ASSISTANT: Sure, can you please tell your travelling dates?

USER: Ok, my travel dates are 05/31 and 06/02.

ASSISTANT: Can you please tell your name?

USER: Ok, I am Dennis Green.

ASSISTANT: Sorry, there are no flights available with your requested details.

USER: That's ok, thank you for helping me.

ASSISTANT: Thank you and have a nice day.