You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I would like to cancel my trip, please help me in changing my existing reservation.

ASSISTANT: Sure, please provide me your name to check the status.

USER: My name is Gary Taylor.

ASSISTANT: Gary, there are no active reservations found with your details.

USER: Ok, not a problem. Thank you for your information.

ASSISTANT: Thank you for contacting our agency.