You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: I want to change my reservation, can you please help me?

ASSISTANT: Sure, can I know your name please?

USER: Myself Rachel Evans.

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

USER: Ok, no issues.

ASSISTANT: Thank you for reaching us, have a good day.

USER: Thank you for the information.