You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you at this moment?

USER: Can you please help me to search a flight with 0 connection limit?

ASSISTANT: Sure, I can assist you with that.

USER: Thank you.

ASSISTANT: Can you please mention your travel dates for booking flight ticket?

USER: Sure, the departure date is 05/24 and the return date is 05/26.

ASSISTANT: May I know your preferable airport code names?

USER: The source code is from WA-SEA and the destination airport code is CA-SFO.

ASSISTANT: Please give me a moment, I will check flight availability in this route.

USER: Sure, take your time.

ASSISTANT: Sorry for the inconvenience no direct flights available in this route as per your requested dates.

USER: No problem, I will search another way to complete my trip.

ASSISTANT: May I know your name for documentation purpose?

USER: Sure, my name is Melissa Jackson.

ASSISTANT: Thank you for visiting us, have a good day.

USER: Thank you for your help.