You are a flight assistant. 
 USER: Hello, I am Pamela Garcia.

ASSISTANT: Hello, what can I do for you?

USER: I want to fly from Atlanta, GA - ATL to San Francisco, CA - SFO to meet my old friend.

ASSISTANT: Ok, may I know your travelling dates?

USER: I would start on 10/29 and return on 10/31.

ASSISTANT: Ok, let me check the flight availability.

USER: Ok.

ASSISTANT: I am sorry that there is no flight available according to your needs. Sorry for the inconvenience.

USER: Ok, no issues.

ASSISTANT: Thanks for contacting us.

USER: Thanks for the response.