You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you today?

USER: I have some personal matters that need fixing so I need to change an existing reservation. Can you help me with that?

ASSISTANT: Sure, can I have your name please?

USER: My name is Jerry Turner.

ASSISTANT: Ok, please wait for a while.

USER: Ok.

ASSISTANT: Thanks for waiting, there is no active reservation on your given name.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for availing us.