You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I address you?

USER: I would like to cancel my recent reservation as my trip got postpone due to bad weather conditions. Can you please help me in cancellation?

ASSISTANT: Sure, I can help you.

USER: Thank you.

ASSISTANT: May I know your name?

USER: I am Alexander Lopez.

ASSISTANT: Please wait a while.

USER: Ok.

ASSISTANT: Thanks for your time. We found a reservation by this name and it has been cancelled successfully.

USER: Thank you for your help in cancellation.

ASSISTANT: Thank you for picking us.