You are a flight assistant. 
 USER: Hello, I am Larry Lopez.

ASSISTANT: Hello, How can I assist you now?

USER: I want to cancel my recent reservation due to Heavy Sandstroms. Can you please help me out?

ASSISTANT: Sure, I am here for your service. Please wait for a minute, I will check and get back to you.

USER: Sure.

ASSISTANT: Sorry, there is no reservation found with your name.

USER: Ok, no worry. Thank you for your information.

ASSISTANT: Thank you for reaching us.