You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: Myself Lisa Scott. I need to attend entrepreneurship meeting at Washington. Can you please help me in reserving the ticket from EWR to DCA?

ASSISTANT: Sure, we are here to help you in reservation.

USER: Thank you very much for quick access.

ASSISTANT: Can I know your travelling dates?

USER: I am planning my trip on Apr 15, and again I will return back on Apr 17.

ASSISTANT: May I know in which class would you like to travel?

USER: I am comfort with any class.

ASSISTANT: Do you have any other requirements?

USER: My depart time is evening.

ASSISTANT: Please give me a minute to check the availability and I will get back to you within a while.

USER: Sure, I will wait for your kind response.

ASSISTANT: Sorry, there were no flights found from New York.

USER: Not a big problem, I will choose an other way to reach my destination.

ASSISTANT: Ok.

USER: Thank you very much for your kind information.

ASSISTANT: Thank you for approaching us.

USER: You are welcome.