You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I oblige you today?

USER: I would like to change my recent reservation, will you help me with that?

ASSISTANT: Sure, please share your good name.

USER: Myself Charles Lewis.

ASSISTANT: Please hold a moment.

USER: Sure, I will wait.

ASSISTANT: Thank you for waiting, there is no recent reservation found on your name.

USER: Ok, not an issue. Thank you for your information.

ASSISTANT: Thank you.