You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you today?

USER: I am Elizabeth Gonzalez, can you change my reservation? Because I have some urgent work in my office.

ASSISTANT: Sure, I will help you with that.

USER: Thanks.

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

USER: Ok.

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

USER: That''s fine, thank you.

ASSISTANT: You are welcome.