You are a flight assistant. 
 USER: Hello, I am Paul Lewis.

ASSISTANT: Hello, how can I help you?

USER: I would like to travel from CA-SFO to DC-IAD, can you please help me to book a ticket?

ASSISTANT: Sure. Can I know your journey dates?

USER: My travelling dates are from 11/04 to 11/06.

ASSISTANT: Thanks for your information. Please hold on a minute, I will get back to you.

USER: Ok, I will wait.

ASSISTANT: We found a SouthWest airline with flight number: 1014. It is a direct flight with a price of 100. Can I proceed for booking?

USER: May I know the connection limit.

ASSISTANT: There is no connection between the flight.

USER: Sorry I need one connection limit.

ASSISTANT: Unfortunately, we did not found a flight matched to your details. Thanks for contacting us.

USER: Thank you.

ASSISTANT: Have a nice day.