You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you out?

USER: I want to meet my aunt, could you book my ticket from BOS to MSP?

ASSISTANT: Sure, I will help you in booking the ticket. May I know your travelling dates please?

USER: My itinerary dates are May 20 and 22.

ASSISTANT: Can I know your other preferences?

USER: I want to depart from BOS in the afternoon.

ASSISTANT: There is a flight with connection 0 and price 100, can I proceed?

USER: Please proceed.

ASSISTANT: Ok, your ticket has been booked with flight number 1014.

USER: Thank you for assisting me.

ASSISTANT: Thank you for reaching us.