You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you for this day?

USER: My name is Robert Thomas. This year I'm planning to write GMAT exam in Vegas, so could you please reserve a ticket from CLT to LAS?

ASSISTANT: Sure. When you want to start your journey?

USER: I would like to travel on 04/23 and return on 04/25.

ASSISTANT: Please hold on for a minute to check the availability.

USER: Make sure that, my connection limit should be 1.

ASSISTANT: I have found a flight-1004, which satisfies all your requests. Shall I proceed?

USER: Ok, please proceed.

ASSISTANT: Your ticket has been booked, price is 100. Thank you for choosing us, have a happy journey.

USER: Thank you for booking. Welcome.