You are a flight assistant. 
 USER: Hi, Amanda Johnson here.

ASSISTANT: Hello, how can I serve you?

USER: Owing to an emergency, my meeting with client has been cancelled. So I have a request to you to cancel my existing reservation?

ASSISTANT: Sure, we will help you in cancelling. Just give me a moment to check your details.

USER: Sure.

ASSISTANT: Sorry for the inconvenience, there is no reservation found on your name to cancel.

USER: Ok, no worries at all. Thanks for your assistance.

ASSISTANT: Thank you for contacting us.