You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: I made a reservation earlier to visit museum of fine arts. Due to emergency health issue I want to change my existing reservation. Can you help me?

ASSISTANT: Sure, we are glad to help you. Please provide your name to check the status of the your existing reservation?

USER: My name is Samuel Jones.

ASSISTANT: Sorry, no reservation found under your name.

USER: Ok, no issue. Thanks for your information.

ASSISTANT: Thank you for approaching us.