You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: I need to cancel my reservation due to my planned event got cancelled so please help me with that.

ASSISTANT: Sure, may I know your name?

USER: Sure, please check with name Barbara Martinez.

ASSISTANT: Give me a  minute.

USER: Sure, take your time.

ASSISTANT: Sorry, there is no reservation found under your name.

USER: It's ok fine, no problem. Thank you for your time.

ASSISTANT: Thank you for opting us.