You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you today?

USER: I am planning to visit some historical places with my family members at DEN, can you help me with booking?

ASSISTANT: Sure, please share me your source airport code?

USER: My source airport code is AUS.

ASSISTANT: Please mention your planned journey dates?

USER: I will fly on Mar 08 and return on Mar 10.

ASSISTANT: Do you like to travel in connecting flight?

USER: I need a flag stop in between my journey.

ASSISTANT: Do you have any other requirement?

USER: No, I don't have any other preferences.

ASSISTANT: May I know your name?

USER: I am Susan Roberts.

ASSISTANT: Thank you for the details, I found a connecting flight 1025 of airline Frontier, fare is 100 and class is economy. Shall I proceed with booking?

USER: You can proceed with booking.

ASSISTANT: Your flight ticket has been booked.

USER: Thank you for your assistance.

ASSISTANT: Thank you for visiting us, we hope see you again.