You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you today?

USER: I am John Edwards, I want to change my reservation as my plan to go for shopping got postponed. Can you help me?

ASSISTANT: Sure, we are here to help you. Please wait for a while.

USER: Ok.

ASSISTANT: Thank you for your time, There was no reservation found on your good name.

USER: It's Ok. Thanks for your time.

ASSISTANT: Thank you for connecting with us.