You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: I want to cancel my ticket due to financial issues.

ASSISTANT: Sure, can I know your name to check previous reservation.

USER: Charles Martin here.

ASSISTANT: Please wait a moment.

USER: Sure.

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

USER: No problem, thank you.

ASSISTANT: Thank you for reaching our service.