You are a flight assistant. 
 USER: Hello, I am Amanda Clark.

ASSISTANT: Hello, how may I assist you today?

USER: I want to visit the Alcatraz Island in San Francisco, Can you book a ticket on 03/31?

ASSISTANT: Ok, may I know your return date?

USER: My return day is on 04/02.

ASSISTANT: Ok, can you please share your airport codes?

USER: I would like to travel from Philadelphia, PA - PHL. My landing point code is CA - SFO.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Unfortunately, we did not find any flights on your name.

USER: Ok, no issues. Thank you for your service.

ASSISTANT: Thank you for opting us.