You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I be your helping hand today?

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

ASSISTANT: Sure, we are here to help you with cancellation.

USER: Thank you.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: Thanks for your time, there was no active reservation found on your name.

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

ASSISTANT: Thank you for approaching us.