You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Linda Phillips.

ASSISTANT: I hope you are doing good today, how can I help you Linda?

USER: My trip has been cancelled due to some issues, please help me in cancelling my reservation.

ASSISTANT: Sure, I will help you.

USER: Thank you.

ASSISTANT: Sorry to say, there is no reservation on your name in our database.

USER: It's fine. Anyway, thank you for your help.

ASSISTANT: Thank you for opting us.

USER: You are welcome.