You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: Can you please help me to book a flight ticket from Denver to reach Austin? Because I have to attend an event.

ASSISTANT: Sure, can you share your airport codes?

USER: Thank you for accepting my request, the airport codes are DEN to AUS.

ASSISTANT: Kindly, mention trip dates.

USER: Sure, my travel dates are Dec 24th and Dec 26th.

ASSISTANT: Do you have any connection limit?

USER: I would like to travel in a single connected flight.

ASSISTANT: Is there any class preference?

USER: I am comfortable to travel in any type of class flight.

ASSISTANT: Are there any other specifications?

USER: No, I didn't have any more specifications.

ASSISTANT: Please forward your name.

USER: My name is Justin Williams.

ASSISTANT: We found a connecting flight of fare 100 with airline American and number 1009. Can I book?

USER: Yes, please go ahead with the ticket booking.

ASSISTANT: Your ticket has been confirmed in economy class.

USER: Thanks a lot for your help in ticket booking.

ASSISTANT: Thank you for availing us.