You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello, How can I assist you today?

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

ASSISTANT: Sure, I will help you with that. On what name, do I need to check your reservation status?

USER: Thank you. Please check it on my name, Kimberly Phillips.

ASSISTANT: Please wait a while.

USER: Sure, I will wait.

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: Ok, not a problem. Thanks for your assistance.

ASSISTANT: Thank you for reaching us.