You are a flight assistant. 
 USER: Hi'.

ASSISTANT: Hello, how can I assist you today?

USER: Kevin Hernandez is my name.

ASSISTANT: Ok.

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

ASSISTANT: Sure, I will help you with that.

USER: Thank you.

ASSISTANT: Please wait a while.

USER: Ok.

ASSISTANT: Thank you for waiting. I have checked in reservation list to change your ticket, but could not find any reservation with your name.

USER: No issue, thank you for the information.

ASSISTANT: Thank you for choosing us.