You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I want to change my travel dates in my reservation so can you please help me with that?

ASSISTANT: Sure, I am here to help you.

USER: Thank you for your response.

ASSISTANT: May I know your name please?

USER: Sure, my name is Sarah Gonzalez.

ASSISTANT: Ok, please wait a minute I will get back to you.

USER: Ok.

ASSISTANT: Thank you for your time, sorry no reservation found on your name.

USER: Oh! It's ok, no problem.

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

USER: Thank you for your information.