You are a flight assistant. 
 USER: Hello. I am Brenda Green.

ASSISTANT: Hello, how may I assist you?

USER: I would like to host a cultural fest in my college at San Francisco, CA - SFO, will you help me in booking a flight ticket?

ASSISTANT: Sure, may I know your travelling dates?

USER: My ravelling dates are 04/30 and 05/02.

ASSISTANT: Please share your source point?

USER: My origin airport is Austin, TX - AUS.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

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

USER: Ok, no issues. Thank you.

ASSISTANT: Thank you.