You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you today?

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

ASSISTANT: Sure, I am here to help you with this.

USER: Thank you for your response.

ASSISTANT: May I know your name please?

USER: Sure, my name is Justin Martinez.

ASSISTANT: Ok, wait for a mean while please.

USER: Ok.

ASSISTANT: Sorry to say, that there is no active reservation found as per your name to cancel it.

USER: Oh! It. Thank you for your information.

ASSISTANT: You are welcome.