You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello,. How can I help you?

USER: I am Sharon Evans. I want to book a ticket from CA-SFO to WA-SEA.

ASSISTANT: OK, can you please provide you travelling dates?

USER: My travelling dates are from May 16 to May 18. I need a direct flight with price limit 200.

ASSISTANT: OK, please wait for sometime.

USER: OK.

ASSISTANT: Thanks for waiting. No flights are found with your given details.

USER: Thanks for the information.

ASSISTANT: Thank you, for connecting with us.