You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I abet you?

USER: I need to change my earlier reservation as my semester exams were postponed.

ASSISTANT: Ok.

USER: Can you help me with that?

ASSISTANT: Sure, I will help you.

USER: Thank you.

ASSISTANT: May I know your good name please?

USER: My name is Justin Jackson.

ASSISTANT: Please be on hold.

USER: Ok.

ASSISTANT: Thank you for waiting, we are sorry to say that no reservation was found in our database on your name.

USER: Ok, no problem. Thank you for the information.

ASSISTANT: Thank you for connecting with us.