You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: My name is Betty Carter. Can you please help me in booking a flight ticket from LGA to PHX?

ASSISTANT: Ok, now please share your travel dates?

USER: Sure, I am willing to travel from 05/23 to 05/25.

ASSISTANT: Thanks for waiting Betty. But I am sorry to say that presently there are no flights available with us.

USER: That's ok, thank you for the information.

ASSISTANT: Thank you.