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

ASSISTANT: Hello, How can I support you today?

USER: I want to participate in Sports festival at Dallas & Fort Worth, TX - DFW.

ASSISTANT: Ok.

USER: Can you please book a ticket under price 500?

ASSISTANT: Sure, I would be happy to help you. Can you please provide your take off airport code?

USER: Sure, my nearest boarding airport is San Francisco, CA - SFO.

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

USER: Yes, I need a stopover.

ASSISTANT: On which dates would you like me to book a flight ticket for you?

USER: My departure day is 06/06 and arrival day is 06/08.

ASSISTANT: Ok, please wait a moment, let me search a flight for you.

USER: Sure.

ASSISTANT:  Thanks for your precious time. We found Frontier airline fare of 100. Shall I proceed for booking with single stopover flight?

USER: Sure, please proceed for booking.

ASSISTANT:  Your ticket has been confirmed with airline number 1020.

USER: Thank you for your service.

ASSISTANT: Thank you for choosing us.