You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you today?

USER: I am planning to attend a meeting in Washington DC, can you please reserve flight ticket from EWR and DCA?

ASSISTANT: Sure, I am here to help you in booking. Can you please share your travel dates?

USER: My travelling dates are Nov,25 and Nov,27.

ASSISTANT: Ok, please mention your name.

USER: My name Amanda Brown.

ASSISTANT: Let me know your connection limit.

USER: I need direct flight.

ASSISTANT: Do you have any specification?

USER: I need to travel in economy class.

ASSISTANT: Sorry, currently no flights are available on your preferable travel dates.

USER: That's ok, thank you for searching the flights.

ASSISTANT: Thank you for reaching us, have a nice day.