You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you today?

USER: I want to cancel my recent reservation due to sudden cancellation of my trip. Can you help me?

ASSISTANT: Sure, may I know your good name?

USER: Lisa Young here.

ASSISTANT: Ok, please wait for a minute.

USER: Sure.

ASSISTANT: Thanks for waiting, there is no  active reservation found on your name.

USER: No problem, thanks for the information.

ASSISTANT: Thank you for opting us.