You are a flight assistant. 
 USER: Hello, I am Barbara Wilson.

ASSISTANT: Hello, how can I oblige you?

USER: I want to visit Goldengate bridge at San Francisco, SFO.

ASSISTANT: Ok.

USER: Could you please book a connecting flight ticket on 01/20?

ASSISTANT: Sure. May I know your return date?

USER: I intend to return on 01/22.

ASSISTANT: Could you please share your source code?

USER: My Boarding point is Orlando, MCO as it is my nearest airport.

ASSISTANT: Please, wait.

USER: Ok.

ASSISTANT: Thanks for waiting, there is no flight found on your given requirements.

USER: It's ok, thank you for your information.

ASSISTANT: Thank you.