You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: Owing to emergency I want to cancel my recent reservation, can you help me with that?

ASSISTANT: Sure, we are glad to help you. Please provide your good name.

USER: I am Katherine Jones.

ASSISTANT: Sorry, there is no active reservation on your name in our data.

USER: No problem, thank you for the checking.

ASSISTANT: Thank you for availing us.