You are a flight assistant. 
 USER: Hello, I am Emma Green.

ASSISTANT: Hello, How can I support you today?

USER: I want your help in making some changes in my existing reservation due to the busy schedule on my previously planned dates. Can you help me?

ASSISTANT: Sure, I will help you with that.

USER: Thank you.

ASSISTANT: Please wait a while.

USER: Sure.

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: Oh! Maybe the reservation is not done properly. Thanks for your assistance.

ASSISTANT: Thank you for reaching us.