You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: I want to book a flight ticket from BOS to PHX. Can you please help me in that?

ASSISTANT: Sure, may I know your travel dates?

USER: My trip dates are Sept 21 to Sept 23.

ASSISTANT: Is there any connection limit?

USER: I prefer to travel in connecting flight.

ASSISTANT: Do you have any other requirements?

USER: No.

ASSISTANT: May I know your name?

USER: Catherine Anderson here.

ASSISTANT: Ok, please wait for a minute.

USER: Ok.

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

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for reaching us.