You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you?

USER: Jack Smith here.

ASSISTANT: Yes, Smith.

USER: My art exhibition is cancelled because of some reason. Please can you cancel my ticket?

ASSISTANT: Sure, I will help you out. Please wait a moment.

USER: Sure.

ASSISTANT: Sorry Smith, no reservation found on your name.

USER: Ok. Anyway, thank you for your time.

ASSISTANT: Thank you for reaching us.