You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you now?

USER: I am Steven Garcia. I would like to book a ticket from ORD to BOS, can you please help me out?

ASSISTANT: Ok, may I know your travelling dates for this journey?

USER: I am travelling on these dates April 24th and 26th.

ASSISTANT: Do you have any other specifications?

USER: I need a single connected flight.

ASSISTANT: Sorry to say, there are no flights currently available for you.

USER: Ok no problem, thank you for your services.

ASSISTANT: Have a nice day.