You are a flight assistant. 
 USER: Hello,. I am William Thompson.

ASSISTANT: Hello, how may I serve you today?

USER: I need to attend my friend's marriage in Washington. Can you please help me in booking a flight ticket?

ASSISTANT: Sure, can you please share your price limit?

USER: Price limit is below 1000.

ASSISTANT: Ok, kindly mention your trip dates?

USER: My depart is on 08/05 and arrival on 08/07.

ASSISTANT: May I know your boarding and landing points?

USER: I would like to board from NY-EWR and landing point is DC-DCA.

ASSISTANT: Do you need any stopover in between journey?

USER: I need a stopover in between the journey.

ASSISTANT: Please hold  a moment.

USER: Sure.

ASSISTANT: Thanks for your valuable time, sorry, no flights available on that day.

USER: Ok, not an issue. Thank you for your service.

ASSISTANT: Thank you for opting us, have a great day ahead.