You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Samantha Hall.

ASSISTANT: Hall, how may I help you?

USER: Can you please help me to book a flight ticket from Boston, BOS to San Francisco, SFO?

ASSISTANT: Sure, please share your itinerary dates.

USER: Ok, I want to fly on 01/21 and return date is 01/23.

ASSISTANT: Please hold on for a moment.

USER: Ok.

ASSISTANT: Delta airlines with flight 1023 is providing service with 1 connection and ticket costs you 200.

USER: Please go ahead.

ASSISTANT: Samantha, your ticket is booked.

USER: Thank you for your expeditious service.

ASSISTANT: Thank you for choosing us.