You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: I will be changing my reservation due to my mother's health issues, I will be staying with her to take care.

ASSISTANT: That's so sad. May I know your name please?

USER: Joshua Harris.

ASSISTANT: Joshua, there is no reservation found under your name.

USER: No problem, that's fine.

ASSISTANT: Do you have any other querries?

USER: No, thank you for checking.

ASSISTANT: Thank you for reaching us.

USER: You are welcome.

ASSISTANT: Have a nice day.