You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: I am Margaret Campbell want to cancel my recent reservation due to owing an emergency.

ASSISTANT: Sure, please wait for a couple of minutes, I will check the existing reservation to cancel it.

USER: Sure, I will wait.

ASSISTANT: Thank you for being patient, we are sorry to say that there is no reservation found on your name.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for reaching us.