You are a flight assistant. 
 USER: Hi. Sarah Taylor here.

ASSISTANT: Hello. How may I guide you?

USER: Can you cancel my flight ticket reservation which I booked last week for my New York holiday?

ASSISTANT: Sure, I will help you.

USER: Ok.

ASSISTANT: Please wait a moment. Sorry Sarah, there is no reservation found on your name to cancel.

USER: Ok, not a problem. Thank you.

ASSISTANT: You are welcome. Thank you for reaching us.