You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: Can you please help me to book a flight from PHX to LAX?

ASSISTANT: Sure, may I know your travel dates?

USER: Sure, I want to travel on Aug 16 and need to return on Aug 18.

ASSISTANT: Is there any connection limit?

USER: I am looking for a flight with single connection.

ASSISTANT: Do you have any other preferences?

USER: No.

ASSISTANT: May I know your name?

USER: Katherine Scott here.

ASSISTANT: Please wait for a minute.

USER: Sure.

ASSISTANT: Sorry, there were no flights found on your route.

USER: Ok, no problem. Thank you for checking.

ASSISTANT: Thank you for reaching us.