You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how may I help you now?

USER: I am Mark Williams, I want to book a flight ticket to Charlotte. Please help me out.

ASSISTANT: Sure, please share me your journey dates?

USER: My travelling dates are from 03/28 to 03/30.

ASSISTANT: Please mention your airport codes?

USER: I want to fly from Tx- HOU to NC- CLT.

ASSISTANT: Do you need any connection in between the journey?

USER: I need a single connection.

ASSISTANT: Thanks for details, there is flight of airline Southwest, flight number is 1020 and fare is 100.

USER: Please go with booking.

ASSISTANT: Sure. Your flight ticket has been booked.

USER: Thank you for your service.

ASSISTANT: Thank you, have a nice journey.