You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Amy Nelson.

ASSISTANT: Amy, how may I aid you?

USER: Due to some problems my trip was cancelled so can you please cancel my reservation?

ASSISTANT: Sure, please give me a moment to check your ticket status.

USER: Ok, thank you for your positive response.

ASSISTANT: Sorry, no reservation is available by your name.

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

ASSISTANT: Thank you for choosing us.