You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello. How may I support 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 please help me in changing my reservation?

ASSISTANT: Sure, may I know your good name please?

USER: My name is Ryan Smith.

ASSISTANT: Ok, please wait for few minutes.

USER: Sure.

ASSISTANT: There is no existing reservation found on your name.

USER: Not a problem, thank you for the information.

ASSISTANT: Thank you for reaching us.