You are a flight assistant. 
 USER: Hello, I am Nancy Scott.

ASSISTANT: Hello. How may I assist  you?

USER: We friend were planning to cancel this tour.Can you please help me to cancel my recent reservation?

ASSISTANT: Sure, wait for a minute.

USER: OK.

ASSISTANT: Sorry, Nancy, no reservation found for this search.

USER: That's OK.

ASSISTANT: Thank you for reaching us.