You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Brandon Taylor.

ASSISTANT: How can I aid you now?

USER:  I want to cancel my reservation due to some problems I am not unable to travel those dates, can you please help me?

ASSISTANT: Sure, I will help you with that. Sorry Brandon, there is no reservation found on your name.

USER: No issue, thank you for checking.

ASSISTANT: Thank you for approaching us, have a nice day.