You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: Can you please cancel my recent reservation?

ASSISTANT: Sure, provide your name to search previous reservation.

USER: My ticket has been reserved in the name of Jessica Lewis.

ASSISTANT: Sorry Lewis, there is no reservation under your name to cancel.

USER: Ok, thank you.

ASSISTANT: Thank you for choosing our service.