You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, what help you are looking for?

USER: As I have changed my plans to meet my childhood friend in New York next week. So, can you help me with cancel of flight reservation?

ASSISTANT: Sure, let me know the name on which ticket is been booked previously.

USER: Ok. My name is Justin Carter.

ASSISTANT: Sorry, there is no ticket showing on your name.

USER: That's not a problem.

ASSISTANT: Thank you for contacting us.

USER: May be I have booked with other agency.

ASSISTANT: Ok.

USER: I appreciate your quick response. Thank you.