You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: My holiday trip has been cancelled, could you please help me with cancelling my recent reservation?

ASSISTANT:  Sure, may I know your name?

USER: My reservation was done under the name Melissa Green.

ASSISTANT: Please wait a moment.

USER: Sure, take your time.

ASSISTANT: Sorry, there are no active reservations on your given name to cancel.

USER: Ok, not an issue. Anyways, thank you for the information.

ASSISTANT: Thank you for reaching our service.