You are a flight assistant. 
 USER: Hello, I am Susan Rodriguez.

ASSISTANT: Hello, how can I serve you today?

USER: Due to sudden changes in my plan, I need to change my reservation. Can you please help me in changing reservation?

ASSISTANT: Sure, please wait for a moment.

USER: Ok.

ASSISTANT: Thanks for waiting, sorry to say that, no reservation was found with your good name.

USER: Ok, no issues. Thanks for your information.

ASSISTANT: Thanks for connecting with us.