You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: I am planning to attend a Tennis competition in Chicago ORD from Seattle SEA. Can you find a flight ticket for me?

ASSISTANT: Sure, may I know your travelling dates?

USER: Ok, my planned trip dates are on Dec 31 and return on Jan 02.

ASSISTANT: May I know you name?

USER: Yes, I am James Nelson.

ASSISTANT: Do you prefer any connecting flight?

USER: Ok, I need a single connecting flight.

ASSISTANT: Any other specifications needed?

USER: No, I don't have any other specifications.

ASSISTANT: Ok, please wait.

USER: Sure.

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

USER: Ok, not an problem. Thank you for your information.

ASSISTANT: Thank you for reaching our service.