You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, what can I do for you at this time?

USER: I need to cancel my reservation as my exams got postponed, can you please help me?

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: Can I have your name to check the details in our database?

USER: I am Paul Collins.

ASSISTANT: Ok, please stand by.

USER: Ok.

ASSISTANT: Thank you for waiting, we have tried to find your reservation but there is no reservation exist on the name Paul Collins.

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

ASSISTANT: Thank you for contacting us.