You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I aid you?

USER: I need to buy a plane ticket from OAK to EWR. Please help me in that.

ASSISTANT: Sure, may I know your travel dates?

USER: My trip dates are from Sept, 01 to Sept, 03.

ASSISTANT: Do you have any specifications?

USER: I need a single connecting flight.

ASSISTANT: Ok, please wait a minute.

USER: Ok.

ASSISTANT: May I know your name?

USER: Jonathan Anderson.

ASSISTANT: Sorry, there were no flights found on your route.

USER: Thank you for your information.

ASSISTANT: Thank you for choosing us.