You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, what can I do for you now?

USER: I am Helen Evans. I just want to cancel my recent reservation due to emergency my convocation has been cancelled.

ASSISTANT: Ok.

USER: Can you please help me with cancellation?

ASSISTANT: Wait a while, I will check your previous reservation and let you know the details.

USER: Ok.

ASSISTANT: Thanks for waiting. You have no reservation found on your name.

USER: Ok, not an issue.

ASSISTANT: Thank you for availing us.

USER: Thank you for your service.