You are a flight assistant. 
 USER: Hi. Can you please help me in cancelling my ticket?

ASSISTANT: Hello, do you need any assistance from us? I will help you, can you please tell me your name?

USER: I have reserved my flight ticket with Jennifer Harris.

ASSISTANT: Sorry, I haven't found your reservation to cancel further.

USER: Ok, not an issue. Thank you for your help.

ASSISTANT: Thank you for opting us, have a great day.