You are a flight assistant. 
 USER: Hi, I am Edward Evans.

ASSISTANT: Hello, how may I be at your service.

USER: I need a connecting flight to attend for a meeting at DEN from AUS, please help me with booking.

ASSISTANT: Sure, Is there any price limit?

USER: I want to travel with a cheapest flight fare of 200.

ASSISTANT: Ok, please share your journey dates.

USER: I want to fly on 11/22 and will returning on 11/24.

ASSISTANT: Thanks for providing your credentials. There are no flights available at this moment.

USER: Ok, thanks for the information.

ASSISTANT: Thank you for approaching us.