You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: Myself Dennis Carter.

ASSISTANT: Nice to meet you Dennis.

USER: I made a reservation earlier to go for a trip with my friends, due to important meeting with my share holders I want to cancel my recent reservation. Will you help me with that?

ASSISTANT: Sure, I will help you with the cancellation of flight ticket reservation. Please wait.

USER: Thank you for accepting my request.

ASSISTANT: I have searched online but I could not find your flight reservation to cancel it.

USER: Ok, no issues. My brother might have cancelled my reservation.

ASSISTANT: Thank you.

USER: Thank you for you information.