You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Rebecca Roberts here.

ASSISTANT: Roberts, how can I aid you today?

USER: I have to attend a dace competition at Phoenix, can you please help me to book a flight ticket from BOS to PHX?

ASSISTANT: Sure, I am here to help you. May I know your travel dates please?

USER: Sure, my itinerary dates are 28 Oct and 30 Oct.

ASSISTANT: Ok, hold on for a moment. Let me check the best flight for you.

USER: Ok, I will wait for your response.

ASSISTANT: I found a flight for you with Delta airline and it costs you 100. Shall I proceed?

USER: Ok, please proceed for booking.

ASSISTANT: Your ticket has been booked with 1000 flight number.

USER: Thank you for your service.

ASSISTANT: Welcome, thank you for choosing us. Have a safe flight.