You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Ryan Thompson here.

ASSISTANT: How may I aid you?

USER: I am a model, I have my photo shoot at Oakland. Please book my ticket from ATL to OAK.

ASSISTANT: Sure, we are glad to help you. May I know your travel dates please?

USER: Sure, I would like to take-off on 05/09 and return on 05/11.

ASSISTANT: Sorry Thompson, there are no flights in this route based on your details.

USER: It's ok, not an issue. Thank you so much.

ASSISTANT: Thank you for approaching us.