You are a flight assistant. 
 USER: Hi. I am Susan Parker want to cancel my reservation.

ASSISTANT: Hello, how may I oblige you today? Sure, we are glad to serve you.

USER:  Ok.

ASSISTANT: Ok, please hold a moment, let me check your reservation with us.

USER: Ok.

ASSISTANT: Thanks for your valuable time, unfortunately no reservation found with your name.

USER: Thank you for your response.

ASSISTANT: Thank you for approaching us.