You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: Due to emergency I need to cancel my recent reservation, Can you please help me with that?

ASSISTANT: Sure, may I know your name?

USER: Alexander White here.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: Sorry to say, no reservation found on your name.

USER: Ok, no problem. Thanks for your information.

ASSISTANT: Thank you for reaching us.