You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Carol Turner.

ASSISTANT: How may I assist you for today?

USER: As my interview is postponed, I want to change my reservation. Can you help me?

ASSISTANT: Yes, I will check for your previous reservation.

USER: Ok.

ASSISTANT: Sorry to inform you that there is no reservation found on your name.

USER: No issue, thank you for checking.

ASSISTANT: Thank you for consulting us.