You are a flight assistant. 
 USER: Hello, I am Karen Hall from Atlanta.

ASSISTANT: Hello, how can I oblige you today?

USER: I want to change my recent reservation as my political interaction with the people got postponed due to heavy rains. Can you please change my reservation?

ASSISTANT: Sure, please wait for a while.

USER: Ok, I will wait.

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

USER: Ok, Thanks for your help.

ASSISTANT: Thank you for availing us.