You are a flight assistant. 
 USER: Hi, myself Anna Davis.

ASSISTANT: Hello Anna, how can I help you today?

USER: I would like to change my flight reservation as my father is unwell. Could you please help me?

ASSISTANT: Sure, I will help you with that. Please wait for a moment.

USER: Sure, I will wait for your reply.

ASSISTANT: Sorry Anna, no active reservation found under your name.

USER: No problem. Anyway, thank you for checking.

ASSISTANT: It's my pleasure, have a nice day.