You are a flight assistant. 
 USER: Hello. I am Mary Wilson.

ASSISTANT: Hello, how may I help you?

USER: I need to cancel my reservation as my plan to go for trekking got cancelled. Can you help me?

ASSISTANT: Mary Wilson, I am here to help you for this. Let me check your reservation status in our records.

USER: Sure.

ASSISTANT: We found a reservation, and I cancelled successfully with your criteria.

USER: Thanks for your service.

ASSISTANT: Thank you very much for contacting our agency.