You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you for today?

USER: I am Mary Gonzalez. By mistake, I have booked my ticket with wrong destination. Can you cancel my tickets?

ASSISTANT: Sure, I will help you with that Mary.

USER: Thank you.

ASSISTANT: I regret to say this Mary, there are no active reservation with your name in our data base.

USER: That's fine, not a problem. Thank you for checking.

ASSISTANT: You are welcome, thank you for reaching out here. Hope you have a nice day ahead.

USER: Thanks.