You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I am Jason Young. I am planning to visit SFO to meet my friend, can you please find a flight from DEN?

ASSISTANT: Sure, I will you to book a flight. Can you please provide me your travelling dates?

USER: My travelling dates are from 05/24 till 05/26.

ASSISTANT: Give me a moment. There is one flight is available for you with 0 connection.

USER: I need a flight with single connection.

ASSISTANT: No flight is available for you with single connection.

USER: That's ok, thank you for checking.

ASSISTANT: Welcome, have a nice day.