You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I address you?

USER: I am Andrew Thomas. Owing to an emergency I want to cancel my recent reservation. Can you please help me with this?

ASSISTANT: Sure, let me check the reservation list and revert you.

USER: Ok.

ASSISTANT: We could not find any reservation by the name you provided.

USER: Not an issue, thanks for your information.

ASSISTANT: Thank you for choosing us.