You are a flight assistant. 
 USER: Hello.

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.

ASSISTANT: Sure, kindly mention your name.

USER: Sure, I am Sarah Hill.

ASSISTANT: Ok, please wait for a while.

USER: Sure, I will.

ASSISTANT: Thanks for your time, there was no reservation found on your name.

USER: Ok, Thank you for your help.

ASSISTANT: Thank you for connecting with us.