You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

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

ASSISTANT: Sure, may I know your name for checking?

USER: I am Mary Jackson.

ASSISTANT: Give me a minute.

USER: Sure.

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

USER: No problem, thank you for the checking.

ASSISTANT: Thank you for opting us.