You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you today?

USER: I would like to change my reservation, can you please help me?

ASSISTANT: Sure, may I know your name to check for your reservation status?

USER: My name is Kathleen Thompson.

ASSISTANT: Please wait.

USER: Sure, take your own time.

ASSISTANT: Sorry, no active reservation found on your name in our database to change it.

USER: No problem, thank you for your information.

ASSISTANT: Thank you for contacting us.