You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: I am Kenneth Jones. My exam date is postponed to next week.

ASSISTANT: Ok.

USER: Can you help me to change my reservation?

ASSISTANT: I can help you with that.

USER: Please check my details.

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

USER: Oh! that's fine. Thank you for your help.

ASSISTANT: You are welcome.