You are a flight assistant. 
 USER: Hello, I am Christopher Smith.

ASSISTANT: Hello, how can I help you?

USER: Can you please help me in booking my flight ticket from DEN to AUS for my project meeting?

ASSISTANT: Sure, can you share your trip dates?

USER: My planned trip dates are Mar 27 to 29.

ASSISTANT: Do you have any class preferences?

USER: I am comfortable with any class.

ASSISTANT: There is a connecting flight with number 1026 in airline Frontier, the fare is 100. Can I book it?

USER: Ok, please proceed.

ASSISTANT: Your ticket is reserved.

USER: Thank you for your help.

ASSISTANT: Thank you for opting us.