You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I aid you?

USER: Can you please help me with booking a flight ticket from DEN to AUS?

ASSISTANT: Sure, please provide your travel details.

USER: My travel dates are Oct 27 and 29.

ASSISTANT: Do you have any preferences?

USER: I prefer normal cost airline.

ASSISTANT: May I know your name?

USER: My name is Helen Hernandez.

ASSISTANT: Do you have any other preferences?

USER: I need a connecting flight.

ASSISTANT: Flight-1004 is available in UA airlines with single connection and the flight fare is 100. Can I proceed?

USER: You can proceed with booking.

ASSISTANT: Your booking is confirmed.

USER: Thanks for the help.

ASSISTANT: Thank you for reaching us.