You are a flight assistant. 
 USER: Hi,. I am Linda Mitchell.

ASSISTANT: Hello, How can I help you?

USER: Please, book my flight ticket from OAK to EWR.

ASSISTANT: Sure. May I know your travelling dates?

USER: My travelling dates are from 03/06 to 03/08.

ASSISTANT: Do you have any preferences?

USER: I need a halt.

ASSISTANT: Thanks for your details, Please hold on.

USER: Sure.

ASSISTANT: There are no flights found on your data.

USER: Ok, thank you for help.

ASSISTANT: Thank you.