You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I need to cancel my reservation, can you help me out?

ASSISTANT: Can you provide me your name to check?

USER: Myself Lisa Collins.

ASSISTANT: Sorry, there is no ticket showing on your given name.

USER: That's ok, no problem. Thank you for your information.

ASSISTANT: Thank you for reaching us.