You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I aid you today?

USER: I am Patricia Taylor. Can you help me in booking from SFO to PHX, as there is a business meeting at Phoenix?

ASSISTANT: Sure, I will help you to book a flight. Can you please share me your travelling dates?

USER: My trip dates are 10/29 to 10/31.

ASSISTANT: Please give me a moment.

USER: Sure.

ASSISTANT: Sorry, no flights are available on your route.

USER: No issue, thank you.

ASSISTANT: Welcome, have a nice day.