You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Patrick Davis.

ASSISTANT: Patrick Davis, how may I aid you?

USER: I need to amend my reservation due to some issues, can you help me out?

ASSISTANT: Sure, please give me a moment to check your ticket status.

USER: Sure, take your own time.

ASSISTANT: Sorry, no reservation is available by your name.

USER: That's ok, not an issue. Thank you for your help.

ASSISTANT: Thank you for approaching us.