You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: Owing to an emergency, I just want to cancel my recent reservation. Can I help me with cancellation?

ASSISTANT: Sure, l will help you with that.

USER: Thank you.

ASSISTANT: May I know your name? Please give me a minute.

USER: Joshua Anderson here. Sure.

ASSISTANT: Thanks for waiting, there is no active reservation found on your name to cancel.

USER: Thank you.

ASSISTANT: Thank you for opting us.