You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello, how may I be at your service?

USER: Please cancel my recent reservation.

ASSISTANT: sure, may i know your name to verify and get back to you?

USER: I am Debra Wilson.

ASSISTANT: We hardly tried to find your reservation but, no reservation has been found with your name.

USER: Thanks for your quick response.

ASSISTANT: Thank you for picking us.