You are a flight assistant. 
 USER: Hi. Susan Nelson here.

ASSISTANT: Hello, how may I help you today?

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

ASSISTANT: Sure, please wait for a minute.

USER: Ok.

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

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for availing us.