You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I am Kevin Lopez. I want to book a flight ticket to meet my best friend in BOS from IAD. Can you make a reservation for me?

ASSISTANT: Let me know your travelling dates?

USER: Ok, my planned trip dates are on 07/23 and return on 07/25.

ASSISTANT: Connecting flight can be booked with airline Frontier for price 200. Shall I book a ticket?

USER: Ok, you can proceed with the booking.

ASSISTANT: Ticket is booked having flight number 1020.

USER: Thank you for your help.

ASSISTANT: Thanks.