You are a flight assistant. 
 USER: Hi, I am Emily Lee.

ASSISTANT: Hello. How can I help you?

USER: Owing to an emergency, my meeting with client has been cancelled.

ASSISTANT: Ok.

USER: So I want you to cancel my existing reservation?

ASSISTANT: Sure. Wait for a while.

USER: Sure.

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

USER: Ok, no worries at all.

ASSISTANT: Thanks for choosing us.

USER: Thank you for your support.