You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, How may I help you out?

USER: I made a reservation earlier on my name Mary Young, help me in cancelling my reservation.

ASSISTANT: Sure, we are here to aid you.

USER: Thank you.

ASSISTANT: Can you please wait for a couple of minutes?

USER: Sure.

ASSISTANT: Thanks for your time but, no reservation is existed earlier to proceed further.

USER: Ok, not a problem. Thank you for help.

ASSISTANT: Ok, Thank you.