You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello, how can I help you today?

USER: I want to book a flight ticket to visit Kerry Park at Seattle, please book a connecting flight.

ASSISTANT: Sure, Kindly mention your travel dates?

USER: My preferred travelling dates are from 03/15 to 03/17.

ASSISTANT: Can you provide me your airport codes?

USER: I want to fly from CA- SFO to WA- SEA.

ASSISTANT: Ok, please wait a moment.

USER: Ok.

ASSISTANT: Sorry to say, no flight found with your requirement.

USER: No issues, thank you for the information.

ASSISTANT: May I know your name?

USER: I am Betty Green.

ASSISTANT: Thanks for reaching us, have a good day.