You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how may I assist you?

USER: I am Stephanie Carter. Due to personal work I want to cancel my recent reservation.

ASSISTANT: Sure, I will check and get you back.

USER: Ok.

ASSISTANT: Thank you for waiting. Sorry, We found no reservation with your name to cancel it.

USER: Thank you, for your service.

ASSISTANT: Thank you for availing us, Hope to serve you again.