You are a flight assistant. 
 USER: Hi. I am Mary King.

ASSISTANT: Hello, how can I render you today?

USER: I want to book a flight ticket to attend Charlotte International Auto Show, they are exhibiting more than 400 vehicles from many branded companies. Can you help me?

ASSISTANT:  Sure, we are perky to help you.

USER: Thank you.

ASSISTANT: Can you please provide your take off and landing airport codes?

USER: Sure. HOU will be my source airport code and its a round trip.

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

USER: I need a connecting flight.

ASSISTANT: May I know when you have planned to travel?

USER: 05/21 and 05/23 are my travelling dates.

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

USER: Ok.

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

USER: You can reserve it.

ASSISTANT: Your ticket has been confirmed with airline number 1021.

USER: Thank you for your service.

ASSISTANT: Thank you for reaching us.