You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: I need to travel EWR and IAD, can you reserve flight ticket?

ASSISTANT: Sure, may I know your planned travel dates?

USER: My travelling dates are May,14 and May,16.

ASSISTANT: Do you have any limits on number of connections?

USER: I prefer direct flight.

ASSISTANT: Do you have any another specifications on your journey?

USER: No.

ASSISTANT: May I know your name for the booking process?

USER: Myself Stephen Jones.

ASSISTANT: Sorry, no flights are available on your required dates.

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

ASSISTANT: Welcome, thank you for reaching us.