You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: Please help me to reserve a plane ticket from ORD to LAX.

ASSISTANT: Sure, may I know your planned travel dates?

USER: Thank you. My planned travel dates are May 03 and May 05.

ASSISTANT: Do you have any limits on number of connections?

USER: Yes, I need a flight with a single connection limit.

ASSISTANT: May I know your name for the booking process?

USER: My name is Donald Scott.

ASSISTANT: Sorry, no flights are available on your specified dates.

USER: It's ok, not a problem with that. Thank you for searching the flights.

ASSISTANT: Welcome, thank you for reaching us.