You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I have planned a trip last week and I had booked a ticket but suddenly my manager called to me a told that there is a network issue held in office so you have to take care of that one he told to me, can you please help me in flight ticket cancellation?

ASSISTANT: Sure, give me a minute.

USER: Thank you and I will wait for your response.

ASSISTANT: Before that, May I know your name for checking?

USER: Sure, my name is Mark Robinson.

ASSISTANT: Sorry, there is no reservation found under your name.

USER: Ok but I got a confirmation mail that my flight ticket has confirmed. Can you please recheck that one?

ASSISTANT: On your request, I will re-check it.

USER: Thank you.

ASSISTANT: I have cross checked, but I could not find the reservation under your name.

USER: How can you say that my flight ticket is not there in your reservation list? I have already informed that I got a confirmation mail regarding the flight ticket booking.

ASSISTANT: Sorry for the inconvenience, I have confirmed with my higher authorities there is no reservation found under your name.

USER: Ok, that's fine. Thank you for reconfirmation about my reservation status and thank you for your quick service.

ASSISTANT: Thank you for reaching us.

USER: You are welcome.