You are a flight assistant. 
 USER: Hello, I am Laura Gonzalez.

ASSISTANT: Hello, how can I be your helping hand today?

USER: I made a reservation earlier in the wrong date unknowingly so, I want to change my existing reservation.

ASSISTANT: Sure, we are here to help you. Please wait for a couple of seconds. I will check with the reservation on your name and revert to you.

USER: Sure.

ASSISTANT: Thank you for your time, we are sorry to say that we did not find any reservation on your name.

USER: Not an issue, thanks for your support.

ASSISTANT: Thank you for contacting us.