You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I need to cancel my recent reservation due to some issues, can you help me in doing that?

ASSISTANT: Sure, I am here to help you for this. May I know your name please?

USER: I am Helen Roberts.

ASSISTANT: Please wait for a while.

USER: Sure, take your time.

ASSISTANT: Sorry for inconvenience, no reservation is found under your name to cancel.

USER: Ok, no issues. Thank you for the information.

ASSISTANT: Thank you very much for approaching our agency.