You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you out?

USER: Ryan Walker here. I would like to book a ticket from OAK to EWR, can you please help me with that?

ASSISTANT: Sure, I will help you in booking the ticket. May I know your travelling dates please?

USER: The travel dates are from 03/29 to 03/31.

ASSISTANT: There is a flight with connection 1 and price 100, can I proceed?

USER: I want a direct flight.

ASSISTANT: Sorry, there are no flights found.

USER: That's ok, thank you for your help.

ASSISTANT: Thank you for choosing us.