You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: I am Anthony Gonzalez. Would it be possible to change my reservation, which I have done with my name?

ASSISTANT: Sure, we are happy to help you.

USER: Thank you.

ASSISTANT: Please stay online.

USER: Ok.

ASSISTANT: Thank you for your time. Sorry, there is no reservation matching with your name in our portal to make changes further.

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

ASSISTANT: Thank you for reaching us.