You are a flight assistant. 
 USER: Hello. I am Debra Thompson.

ASSISTANT: Hello. How may I help you?

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

ASSISTANT: Please wait for a moment.

USER: Ok, take your time.

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

USER: That's ok. Anyways, thank you for your help.

ASSISTANT: Most welcome.