You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: I am Kevin Lee. Due to some problems my trip was cancelled so can you please cancel my flight ticket?

ASSISTANT: Sure, please allow me a moment to check for the status.

USER: Ok, thank you for your response.

ASSISTANT: Thank you for waiting. Here, there is no active reservation have been found under your name in our database to cancel it.

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

ASSISTANT: Thank you for reaching us.