You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I am Kenneth Taylor.

ASSISTANT: Happy to meet you Kenneth Taylor.

USER: I have accompanied with my friend's marriage, so I want to change my reservation. Can you please help me out?

ASSISTANT: Sure, wait a moment let me check.

USER: Ok.

ASSISTANT: There is no reservation on your name.

USER: Ok, thank you for your valuable services.

ASSISTANT: Welcome, have a nice day.

USER: Most welcome.