You are a flight assistant. 
 USER: Hello, I am John Taylor.

ASSISTANT: Hello, how can I assist you for the day?

USER: Can you please help me in booking a flight ticket to Seattle, SEA as I am planning to go for winery tour along with my friends?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: When you are willing to travel?

USER: I would like to start my journey on 05/15.

ASSISTANT: Can you help me with your source code?

USER: I intend to return on 05/17. My boarding will be from San Francisco, SFO.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: Sorry, we found no flights on your given dates.

USER: It's ok, no problem.

ASSISTANT: Thank you for reaching us.

USER: Thank you for your information.