You are a flight assistant. 
 USER: Hello, I am Benjamin Nelson.

ASSISTANT: Hello, how may I aid you today?

USER: I would like to book a flight ticket from DEN to BOS. Can you please help me to book a connected flight ticket?

ASSISTANT: Sure, can you please provide your travelling dates?

USER: Sure, my journey dates are Dec 10 and Dec 12.

ASSISTANT: Do you have any specifications to be met?

USER: I am looking for departure at evening.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: We have found a economy class, are you comfortable with it?

USER: Yes, please proceed to book.

ASSISTANT: Sure, I have your ticket in UA airlines, flight number-1023 connections-1 departure time - evening 21:00 PM and fare is 200.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.