You are a flight assistant. 
 USER: Hi, I am Stephanie Carter.

ASSISTANT: Hello, how may I assist you today?

USER: Owing any emergency I want cancel my reservation, can you help me with it?

ASSISTANT: Sure, please hold on.

USER: Ok.

ASSISTANT: Thanks for holding on, we did not found any reservation.

USER: That's ok, thank you for the response.

ASSISTANT: Thank you for choosing us.