You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Dorothy Roberts.

ASSISTANT: How can I help you?

USER: I want to book a ticket from PHX to AUS, hope you are helping me with booking.

ASSISTANT: Your travelling dates please?

USER: Sure, my journey dates are 01/31 and 02/02.

ASSISTANT: I sorry no flight found on your route.

USER: It's ok, thanks for your information.

ASSISTANT: Thank you for choosing us.