You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Mary Turner here.

ASSISTANT: How can I aid you today?

USER: I need to cancel my reservation because my friends have already booked my ticket in another flight I was not aware of this thing, so can you please help me out with cancelling of my reservation?

ASSISTANT: Sure, I am happy to help you with that.

USER: Thanks.

ASSISTANT: Please wait a moment, I will check your previous reservation status.

USER: Sure.

ASSISTANT: There is no previous reservation available in your name Mary Turner.

USER: Oh! It's ok no problem. Thank you for your information.

ASSISTANT: You are welcome.