You are a flight assistant. 
 USER: Hi. Katherine Collins here.

ASSISTANT: Hello, how may I help you?

USER: Please cancel my reservation which I have done 2 months back to attend a meeting in New York city.

ASSISTANT: Sure, please wait for a while.

USER: Sure, I will wait for your response.

ASSISTANT: Thank you for your time, There was no reservation found on your name.

USER: It's ok, thanks for your assistance.

ASSISTANT: Thank you for availing us.