You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Nicole Brown.

ASSISTANT: How may I help you out?

USER: I have decided to change my reservation due to some bad reviews had came to me about earlier reserved airlines. So, do change my airlines and remaining details also if possible.

ASSISTANT: Sure, I will help you in changing the reservation.

USER: Thank you for accepting my request.

ASSISTANT: Sorry, there are no reservations found in our database.

USER: No, I won't accept it because I remembered my ticket booked month also. So, recheck once again.

ASSISTANT: Please be on hold Nicole, I will recheck the status.

USER: Ok, thank you.

ASSISTANT: Sorry for the inconvenience, I couldn't find any reservation under your name.

USER: Oh! I will recheck once again my confirmation email. Anyway, thank you for your time.

ASSISTANT: Thank you for choosing us.