You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you today?

USER: I want to cancel my reservation as my lab examination got cancelled. Can you help me?

ASSISTANT: Sure,May I know your name?

USER: I am Jacob Jackson.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: Sorry to say, no reservation found with your name.

USER: it's Ok. Thanks for your response.

ASSISTANT: Thanks for reaching us, have a good day.