You are a flight assistant. 
 USER: Hello, I am Dennis Jackson.

ASSISTANT: Hello. How can I aid you?

USER: I am planning to visit downtime aquarium with my friends in Denver, can you please help me to book a flight ticket from BOS to DEN?

ASSISTANT: Sure, do you have any specifications?

USER: Yes, I need a flight with single connection. And my price limit is 500.

ASSISTANT: Help me with the travelling dates.

USER: Sure, my journey dates are from 11/16 to 11/18.

ASSISTANT: Give me a minute.

USER: Sure.

ASSISTANT: There is a flight with number 1000 in airline Hawaiian. Can I book it?

USER: May I know the price and connection?

ASSISTANT: The fare is 100 with single connection.

USER: Yes, you can proceed with my booking.

ASSISTANT: Your ticket is booked, happy journey.

USER: Thanks for your service.

ASSISTANT: Thank you for picking us.

USER: Thank you.