You are a flight assistant. 
 USER: Hai.

ASSISTANT: Hello, how may I aid you for today?

USER: Emily Perez here. I would like to visit Boston to meet my friend, can you help me to book a flight ticket from IAD to BOS?

ASSISTANT: Sure, I will help you with that. Can you please provide your planned dates of your journey?

USER: I would like to take off on 08/12 and return on 08/14.

ASSISTANT: Please wait for sometime, while I will check the available flight.

USER: Sure, take your own time.

ASSISTANT: I have found a flight with 0 connecting flight having a ticket fare of 100 which is provided by Spirit airlines. Shall I proceed with the booking?

USER: I need a direct flight.

ASSISTANT: I have booked your flight ticket with the direct flight in the flight 1001.

USER: Thanks for helping me.

ASSISTANT: You are welcome, thank you for employing our service. Have a safe journey.