You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: I want to participate in the multi-car 50 mile canyon road test drive which is going to be held in Denver, DEN. Can you help me to book a flight ticket?

ASSISTANT: Yes, can you tell me your dates of travel?

USER: My travel dates are May 03 and 05.

ASSISTANT: Can I know your source airport code?

USER: My source is from Boston, BOS.

ASSISTANT: Do you have any preferences?

USER: I prefer to travel in economy class.

ASSISTANT: Do you have any other specifications?

USER: I need a break in my journey.

ASSISTANT: I have found an economy class ticket with a price of 100 and it is a direct flight.

USER: Please proceed.

ASSISTANT: Can I know your name for booking?

USER: Sure, Nicole Allen here.

ASSISTANT: Your ticket has been booked.

USER: Thanks for your kind assistance.

ASSISTANT: Thank you for reaching us.