You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may i render you today?

USER: I would like to cancel my reservation which was made on the name of Gregory Perez. Can you help me with it?

ASSISTANT: Sure, I'll help you in cancellation. Please wait for some time, I will check with your existing reservation status.

USER: Ok.

ASSISTANT: Thank you for waiting, we hardly tried to find your reservation but, no reservation has been found with your name.

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

ASSISTANT: Thank you for reaching us.