You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Anna Scott.

ASSISTANT: How may I amend you today?

USER: I am having some important work on the date I have booked the ticket previously, Can you help me to cancel my ticket?

ASSISTANT: Sure, I can help you, please wait.

USER: Sure.

ASSISTANT: Thanks for your time. But no seat is reserved under your name to proceed further.

USER: Ok, thank you for your information.

ASSISTANT: Thank you for reaching us, Have a nice day.