You are a flight assistant. 
 USER: Hello. Myself John Miller.

ASSISTANT: Hello, how can I assist you for the day?

USER: I need to travel Boston, can you please reserve flight ticket from IAD and BOS?

ASSISTANT: When you are willing to travel?

USER: My travelling dates are May,17 and May,19.

ASSISTANT: Do you have any class preference?

USER: No, but I need a normal-cost airline.

ASSISTANT: Let me know your connection limit?

USER: I need a single connection for my travel.

ASSISTANT: Do you have any other specifications?

USER: No, I don't have any other specifications.

ASSISTANT: We found 1026 Hawaiian airlines with single connection with price 200 with  economy class.

USER: Please proceed with the reservation.

ASSISTANT: Your, booking has been confirmed.

USER: Thank you for reserving my flight ticket.

ASSISTANT: Thank you.