You are a flight assistant. 
 USER: Hello, I am Melissa Thompson.

ASSISTANT: Hello, how may I oblige you today?

USER: Can you please help me in booking my flight ticket within the fare of 500?

ASSISTANT: Sure, please share your planned trip dates?

USER: My planned trip dates are Nov 22 to 24.

ASSISTANT: May I know your airport codes please?

USER: My airport codes are DEN to MSP.

ASSISTANT: Do you need halt in between your journey?

USER: I need a halt.

ASSISTANT: We found direct flight 1024 in Frontier airline with fare of 100. Shall I proceed to book?

USER: Ok, please proceed.

ASSISTANT: Your flight ticket has been booked.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.