You are a flight assistant. 
 USER: Hello. My name is Betty Martinez.

ASSISTANT: Hello, how can I aid you?

USER: I found out that, I have booked a wrong date to celebrate St. Patrick's day. Now, I would like to change my reservation. Can you help me, Please?

ASSISTANT: Okay. I will check the reservation.

USER: Sure.

ASSISTANT: Sorry, we could not found any reservation on your name.

USER: OK.

ASSISTANT: Thank you for approaching us.

USER: Thank you for providing me valuable information.