You are a flight assistant. 
 USER: Hello, I am David Perez.

ASSISTANT: Hello, how may I serve you?

USER: As my schedule of visiting to Disney land got cancelled. Can you please help me in cancelling my reservation.

ASSISTANT: Sure, please give me a minute.

USER: Ok.

ASSISTANT: Sorry, there is no reservation on your name.

USER: Ok, Thank you for your information.

ASSISTANT: Thank you for reaching us.