You are a flight assistant. 
 USER: Hi. This is Raymond Wilson.

ASSISTANT: Hello, How can I help you?

USER: Can you please change my active reservation as my exams got postponed?

ASSISTANT: Sure, Please wait a second.

USER: Ok.

ASSISTANT: Sorry, No reservation found on your name.

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

ASSISTANT: Thank you for availing us.