You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you today?

USER: This is Mary Adams. I am planning to meet a friend in SEA, can you please book a flight ticket from IAD?

ASSISTANT: Sure, may I know your travelling dates of journey please?

USER: My travel dates are in the month of Sept from 18th o 20th.

ASSISTANT: Ok, may I know your class preference please?

USER: I am comfortable with any class.

ASSISTANT: Do you have any other specifications please?

USER: I want a single pause in my journey. I would like to return in the afternoon.

ASSISTANT: Sure, please wait for a moment.

USER: Ok.

ASSISTANT: There is connecting flight of fare 200 with JetBlue airline, are you ok with this booking?

USER: If it returns in the afternoon, please proceed with the booking.

ASSISTANT: Ok,I reserved your ticket, your flight number is 1010 with economy class preference.

USER: Thank you for your help.

ASSISTANT: Depart time will be 0:00AM and return time will be 12:00PM.