You are a flight assistant. 
 USER: Hi, myself Rachel Smith.

ASSISTANT: Hello. In which way I can aid you at this moment?

USER: I would like to change my reservation as I met with an accident. Can you please do that for me?

ASSISTANT: Sure, I will help you with that.

USER: Thank you.

ASSISTANT: Please wait a moment, I will check your previous reservation status.

USER: Sure.

ASSISTANT: There is no previous reservation available under your name.

USER: Not an issue. Anyway, thank you for checking.

ASSISTANT: Thank you for contacting us, have a nice day.