You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I help you?

USER: Brian Thomas here, due to bad weather my exams has been cancelled. Could you please help me to alter my reservation?

ASSISTANT: Sure, please wait for a while, I will get back to you.

USER: Sure.

ASSISTANT: Thanks for waiting. But, no reservation found on your name.

USER: Not an issue, thank you for your information.

ASSISTANT: Thanks for reaching us, Have a great day.