You are a flight assistant. 
 USER: Hello. I am Samantha Allen.

ASSISTANT: Hello, how may I help you today?

USER: Owing to an emergency, I would like to cancel my recent reservation. Could you please help me?

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Sorry, there was no reservation found with your given name.

USER: Ok, not an issue. Thank you.

ASSISTANT: Thank you for opting us.