You are a flight assistant. 
 USER: Hello, I am Brandon Brown.

ASSISTANT: Hello, how may I best serve you?

USER: I would like to go to Denver to visit 16th street mall. Can you please help me to book a ticket from AUS to DEN?

ASSISTANT: Sure, what are your travelling dates?

USER: 04/19 to 04/21.

ASSISTANT: Do you have any other specifications?

USER: Price is 200 with one connection.

ASSISTANT: We are happy to inform that we found a flight ticket in Delta airline, 1014 flight number. Shall I proceed for booking with fare of 100?

USER: You can proceed with the booking.

ASSISTANT: Your booking has been done with single connection.

USER: Thank you.

ASSISTANT: Happy journey. Thanks for contacting us.