You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Ashley Lewis.

ASSISTANT: How can I aid you?

USER: Owing an emergency, I want to cancel my reservation. Can you help me for that?

ASSISTANT: Sure. Please wait for a while.

USER: Sure, I will wait for your response.

ASSISTANT: Sorry, there is no reservation found on your name.

USER: That's ok, thank you for checking.

ASSISTANT: Thanks for opting us.

USER: Welcome.