You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, do you need any help from us?

USER: Can you please book a flight ticket from ATL to BOS?

ASSISTANT: Sure, could you please share your departure and arrival day?

USER: Yes, my travelling dates are 17 and 19 of July.

ASSISTANT: Ok, could I have your name please?

USER:       My name is Gregory Lopez.

ASSISTANT: Ok, do you need direct or connecting flight?

USER: I need a connecting flight.

ASSISTANT: Ok, may I know your airline preference?

USER: I don't have airline preference.

ASSISTANT: The economy class with flight number 1002 of Frontier airline is available having fare as 100 and connection as 1, is it ok for you?

USER: Yes, I am ok with it.

ASSISTANT: Ok, your reservation is confirmed. The departure time is 12:00 hours and the arrival time is 13:00 hours.

USER:  Thank you.

ASSISTANT: You are welcome, have a great day.