You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: Can you please help me in changing my recent reservation? As my planned trip has been postponed.

ASSISTANT: Sure, we are here to help you. May I know your name?

USER: Sure, my name is Kathleen Gonzalez.

ASSISTANT: Ok, wait for some time.

USER: Sure, take your own time.

ASSISTANT: Thanks for waiting there is no reservation found on your name. Thanks for approaching us.

USER: Thank you for giving the information.