You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I need to change my recent reservation, can you help?

ASSISTANT: Sure, can you please provide me your name to check the reservation?

USER: Myself Shirley Robinson.

ASSISTANT: Sorry, there is no reservation with your given name.

USER: That's ok, thank you for the information.

ASSISTANT: Thank you for reaching us.