You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you at present?

USER: Owing to an emergency, I would like to cancel my recent reservation. Will you help me with this?

ASSISTANT: Sure, I am here to help you with cancellation. May I know your name please?

USER: Thank you. My name is Edward Miller.

ASSISTANT: Ok, please wait for sometime.

USER: Sure, I will wait for your information.

ASSISTANT: Sorry to say that, there was no reservation found on your name to cancel it.

USER: Ok, not an issue. Thank you for providing information.

ASSISTANT: Thank you for availing our service.