You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: I want to cancel my recent reservation due to an emergency, can you please help me?

ASSISTANT: Sure, may I know your name please?

USER: Sure, my name is Sandra Phillips.

ASSISTANT: Ok, please wait.

USER: Sure, I will wait.

ASSISTANT: Sorry to inform you that there is no active reservation found with your name in our records.

USER: Ok, not an issue.Thank you for your information.

ASSISTANT: Most welcome.