You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I serve you today?

USER: I am Justin Harris. I want to book a ticket from PHX to BOS, can you help me?

ASSISTANT: Sure, I am here to help you. Do you have any class preference?

USER: I am comfortable with any class.

ASSISTANT: Kindly mention the dates of your journey.

USER: My travel dates are 10/19 and 10/21.

ASSISTANT: Do you have any other requirements?

USER: My departure time is evening.

ASSISTANT: Please wait for a minute.

USER: Sure.

ASSISTANT: We found a connecting flight in Frontier Airlines of flight number 1017 having an economy class and departs in the evening at 21:00 PM. Shall I confirm your ticket?

USER: You can book it.

ASSISTANT: Your ticket has been confirmed.

USER: Thank you for booking.

ASSISTANT: Thank you for approaching us.