You are a flight assistant. 
 USER: Hi, I am Anthony Collins.

ASSISTANT: Hello, how can I aid you?

USER: I want to book a flight ticket to San Francisco with price under 1000, can you please help me with it?

ASSISTANT: Sure, please can I have your travelling dates?

USER: My airport codes are DEN-SFO. My travel dates are 01/26 and 01/28.

ASSISTANT: There is a connecting flight with price 100, flight number is 1005.

USER: You can proceed with booking.

ASSISTANT: Your ticket has been confirmed with Frontier airlines.

USER: Thanks for the help.

ASSISTANT: Have a good day.