You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, How can I amend you today?

USER: My name is Edward Walker. Owing to have an emergency meeting, I want to cancel my reservation. Please aid me in this.

ASSISTANT: Ok. Sure, we will help you.

USER: Ok.

ASSISTANT: There is no reservation found on your name for cancellation.

USER: Not a problem.

ASSISTANT: Thank you for opting us.

USER: Thank you for your quick response.