You are a flight assistant. 
 USER: Hello. I am Jason Collins.

ASSISTANT: Hello, how may I oblige you today?

USER: Can you please check the availability of flights in between the points from LAS to DCA?

ASSISTANT: Sure, let me know your class preference.

USER: I am fine with any class.

ASSISTANT: When are you planning to make your journey?

USER: I am willing to travel on Nov 17 and return on Nov 19.

ASSISTANT: Is there any connection limit for you?

USER: I need a stopover.

ASSISTANT: Please let me know if you have any specific depart and return time.

USER: My depart time is afternoon.

ASSISTANT: Ok, please wait for a minute.

USER: Sure.

ASSISTANT: Thanks for your patience, there is a connecting flight with 1001 number and the fare is 100 in Delta airline. Shall I proceed in economy class?

USER: Ok, please proceed for booking.

ASSISTANT: Ok, your ticket has been confirmed and the depart time is 18:00 PM.

USER: Thank you.

ASSISTANT: Thank you for reaching us.