You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I oblige you today?

USER: I am Linda Collins, I want to book a flight on 09/23 to visit my grand father home. Can you book a flight from Denver, CO-DEN?

ASSISTANT: Sure, may I know your journey dates?

USER: I will leave on 09/23 and I need a return ticket on 09/25.

ASSISTANT: Please mention your destination code?

USER: My destination airport is Orlando, FL-MCO.

ASSISTANT: Do you prefer any halt in between your journey?

USER: Yes, I need a halt.

ASSISTANT: Thanks for your information, we found a Frontier airline with flight 1020 fare 100 having a flag stop. Shall I proceed?

USER: Please proceed with booking.

ASSISTANT: You ticket has been confirmed.

USER: Thank you for helping me.

ASSISTANT: Thank you for choosing us.