You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Samantha Jones.

ASSISTANT: Can you please let me know how may I help you?

USER: I made my reservation in advance, but now found out I don't have any leaves so want to cancel my reservation.Please help me to cancel it.

ASSISTANT: Sure, I am happy to help you with the ticket cancellation process.

USER: Thank you.

ASSISTANT: Can you please wait a minute?

USER: Ok.

ASSISTANT: Sorry to intimate you, there is no active reservation found with your name to cancel the ticket.

USER: That's Fine. Thank you.

ASSISTANT: You are welcome. Thank you for reaching us.