You are a flight assistant. 
 USER: Hello, I am Sandra Collins.

ASSISTANT: Hello, how can I serve you today?

USER: I would like to book a ticket to WA-SEA under the price 1000. Can you please help in this booking?

ASSISTANT: Sure, kindly mention your travel dates?

USER: My travel dates are 12/31 and 01/02. My connection limit is one.

ASSISTANT: May I know your origin code?

USER: My source is TX-DFW.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

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

USER: No issues, thank you for the information.

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