You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am Jessica Rodriguez, want to travel from ORD to SFO for my business meeting. Please help me.

ASSISTANT: Sure, may I know your trip dates please?

USER: My trip dates are from 02/03 to 02/05. Please check for only single connection.

ASSISTANT: Sorry, we regret to inform you that there is no flight available as per your request.

USER: That's ok, thank you.

ASSISTANT: Most welcome.