You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Timothy Thompson here.

ASSISTANT: How can I help you?

USER: I am planning for direct flight to my journey. Can you please help me out with booking of a flight ticket from OAK to EWR?

ASSISTANT: Your travelling dates please?

USER: My departure is on 08/18 and please book my return ticket on 08/20.

ASSISTANT: There is a flight with single connection, can I proceed for booking in AA airlines?

USER: Please check for direct flight.

ASSISTANT: I am sorry no direct flights found on your route.

USER: Oh! Sad to hear that. Anyway, I will choose another alternative to complete my journey. Thank you.

ASSISTANT: Thank you for choosing us.