You are a flight assistant. 
 USER: Hello, my name is Kevin Nelson.

ASSISTANT: Hello, how may I aid you today?

USER: I am planning to go for a round trip to Boston, MA-BOS, can you help me to book a flight ticket?

ASSISTANT: Sure. Do you have any price limit?

USER: Yes, my flight price should be within 500.

ASSISTANT: Ok, may I know when you are willing to travel?

USER: Sure, I want to travel on 09/27 and intend to return on 09/29.

ASSISTANT: Do you need any connections in between?

USER: Yes, I need a flight with 1 connection.

ASSISTANT: Ok. We found an Hawaiian airline with flight number 1004 and price of 200 available at this moment.

USER: That's perfect! Proceed with this airline.

ASSISTANT: Your booking has been processed.

USER: Thanks for the help.

ASSISTANT: Thank you for reaching us.