You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you out?

USER: Myself William Jackson. I need to schedule my trip to travel Boston this week day. Can you please help me in reserving the ticket from EWR to BOS?

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

USER: I will drop-off 04/18 and again I will retrieve on 04/20. Can you please check for direct flight?

ASSISTANT: Sorry, there are no flights found.

USER: Not a big deal, anyway thank you very much for your kind service.

ASSISTANT: Thank you for choosing us.