You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, what help can I do for you?

USER: My name is Dennis Allen. I am having a lecture in Boston University, please book me a ticket from JFK to DTW.

ASSISTANT: That's great Allen. May I know your preferable dates to travel?

USER: Sure, my preferable travel dates are 06/06 to 06/08.

ASSISTANT: There is a flight 1013 of Hawaiian airlines available for your request.

USER: Please proceed.

ASSISTANT: Your ticket is booked successfully.

USER: Thank you for the booking.

ASSISTANT: Thank you for flying with our service.