You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Laura Mitchell.

ASSISTANT: How may I help you? Nice to meet you.

USER: I need to amend my reservation, can you help me out please?

ASSISTANT: Sure, please hold on.

USER: Sure, take your own time.

ASSISTANT: Sorry Mitchell, there are no reservation found on given name.

USER: That's ok, no problem. Thank you for your information.

ASSISTANT: Thank you for reaching us.