You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Ruth Allen here.

ASSISTANT: How can I aid you today?

USER: I want to travel from WA-SEA to CA-SFO for attending a Robotic Workshop. Can you please help me for booking the flight ticket?

ASSISTANT: I can help you in booking flight ticket. May I know your journey dates for booking flight ticket?

USER: My departure date is 03/19 and return date is 03/21.

ASSISTANT: Ok, please wait a moment, I will check flight availability.

USER: Ok, make sure my connections limit is 0.

ASSISTANT: Ok. Sorry, no direct flights available in this route as per your requested dates.

USER: So sad for that. Anyway, thank you for the information.

ASSISTANT: Thank you for reaching us, have a nice day.