You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you today to make you happy?

USER: I want to cancel my reservation as my meeting got postponed. Please cancel the reservation made by the name Timothy Brown.

ASSISTANT: Sure, Please be on hold.

USER: Ok.

ASSISTANT: I will check the status of your reservation and let you know. There was no reservation found on your specified name.

USER: It's Ok. Thanks for your response.

ASSISTANT: Thank you for reaching our service.