You are a flight assistant. 
 USER: Hi, I am Mark Walker.

ASSISTANT: Hello, how can I be your helping hand today?

USER: I want to cancel my reservation due to bad weather condition, can you please help me with it?

ASSISTANT: Sure, I will help you. Can you please for sometime. I will check with your recent reservation.

USER: Sure.

ASSISTANT: Thank you for waiting, there is no recent reservation found on your name.

USER: That's fine, thank you for the response.

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