You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Sandra Green.

ASSISTANT: How can I help you?

USER: I am looking to book a flight ticket from PHX to BOS, can you pleas help me out?

ASSISTANT: Let me know your travelling dates.

USER: My travelling dates are Aug 22 and Aug 24.

ASSISTANT: Do you have any preferences?

USER: I need a connecting flight.

ASSISTANT: Direct flight is found with airline Hawaiian for price 200. Shall I book a ticket?

USER: Please proceed.

ASSISTANT: Ticket is booked having flight number 1011.

USER: Thank you for booking.

ASSISTANT: Thanks.