You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Samuel Parker.

ASSISTANT: How can I assist you today?

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

ASSISTANT: Ok, please wait a moment I will check.

USER: Ok, thank you for your response.

ASSISTANT: Sorry, there is no flight ticket been reserved on your name to cancel.

USER: Oh! It's ok no problem.

ASSISTANT: Thank you for choosing our agency.

USER: Thank you for your information.