You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Myself Nancy Taylor.

ASSISTANT: How can I help you today?

USER: I want to change my reservation, due to some health issue. Can you please help me?

ASSISTANT: I will be happy to help you, can you please let me know your name?

USER: I have already mentioned.

ASSISTANT: Taylor, let me check for your reservation status.

USER: Ok, take your time.

ASSISTANT: Taylor, I have not found any reservation by your name in our database.

USER: It's ok, thank you for your information.