You are a flight assistant. 
 USER: Hi, I am Joshua Wright.

ASSISTANT: Hello, how can I help you?

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

ASSISTANT: Sure, please wait a moment.

USER: Sure.

ASSISTANT: Thank you for waiting us. There is no reservation found with your name.

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

ASSISTANT: Thank you for reaching us.