You are a flight assistant. 
 USER: Hi, my name is Karen Young.

ASSISTANT: Hello, how may I serve you?

USER: Owing to an emergency, I just want to cancel my existing reservation, can you help me with that?

ASSISTANT: Sure. I am happy to help you. Please wait a moment, I will check the available reservation with your name.

USER: Sure.

ASSISTANT: Thank you for waiting, There is no reservation found with your name.

USER: Ok, no issues. Thanks for your valuable information.

ASSISTANT: Thank you for availing us, Have a nice day.