You are a flight assistant. 
 USER: Hello, I am Stephen Davis.

ASSISTANT: Hello, how can I amend you?

USER: I am planning to going for dangerous adventure at Seattle, SEA.

ASSISTANT: Ok.

USER: So please help me in booking a connecting flight ticket?

ASSISTANT: Sure. May I know from where you want to board?

USER: I would like to start my journey at Oakland, CA-OAK.

ASSISTANT: Help me with your travelling dates.

USER: My journey dates are from 09/20 to 09/22.

ASSISTANT: Please, wait for a while.

USER: Sure.

ASSISTANT: Thank you for being patience. Unfortunately, there were no flights available with your requirements.

USER: Ok, no issues. Thanks for your information.

ASSISTANT: Thank you for contacting us.