You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you today?

USER: I am Michelle King here, I want to reserve my ticket from DEN to BOS, can you please help me out?

ASSISTANT: Sure, I am here to help you. Can you please provide your journey dates?

USER: Sure, my planned dates of journey are from Apr, 23 to Apr, 25.

ASSISTANT: Do you have any connection limit for this journey?

USER: I am ok with any connecting flight.

ASSISTANT: Do you have any class preference for this trip?

USER: Not required.

ASSISTANT: Do you have any airline preference for this trip?

USER: I need a depart time at evening.

ASSISTANT: Wait a moment please.

USER: Sure, I will wait.

ASSISTANT: Delta airlines is providing connecting flight on this route with a ticket fare of 400, shall I book your ticket?

USER: Ok, please book it.

ASSISTANT: Michelle King, your ticket is booked in flight number 1007 and the flight departs at 1:00AM and arrives at 18:00PM.

USER: Thank you for your help in booking.

ASSISTANT: You are welcome and have a safe journey.