You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I am Mary Clark. Can you help me in booking a flight ticket from BOS to ATL?

ASSISTANT: Sure, I will help you to book a flight ticket. Can you please share me your travelling dates?

USER: I would like to fly on June 18 and return on June 20.

ASSISTANT: Please allow me a moment.

USER: Sure.

ASSISTANT: Here, I found a flight for you with single connection. Shall I proceed for booking?

USER: You can proceed to booking.

ASSISTANT: Your ticket is booked with flight number 1009 and airline is Southwest.

USER: Thank you.

ASSISTANT: Welcome, have a safe flight. Thank you for choosing us.