You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Jack Carter.

ASSISTANT: Carter, how may I assist you today?

USER: I want to cancel my reservation, due to heavy rainfall in Seattle, can you help me?

ASSISTANT: Sure, hold on for a moment. Let me check.

USER: Sure, take your time.

ASSISTANT: Sorry Jack, there are no flights reserved on your given name.

USER: That's ok, thank you for your information.

ASSISTANT: Welcome, thank you for choosing us. Have a great day.