You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I support you?

USER: I am Shirley Martinez and I want to book a flight with a halt to reach Charlotte on Apr 28. Can you please help me in booking a flight from IAH?

ASSISTANT: Sure, may I know your final destination airport code?

USER: My destination airport code is CLT.

ASSISTANT: When would you like to return?

USER: I intend to return on 30th of the same month.

ASSISTANT: How much can you pay for buying your ticket?

USER: I can pay up to 5000.

ASSISTANT: Are you okay with connecting flight or you need a direct flight?

USER: I have already mentioned that I need a halt.

ASSISTANT: Is there any priority between economy class or business class?

USER: No.

ASSISTANT: At what time do you prefer to travel?

USER: I am okay with any time.

ASSISTANT: Please be on hold for sometime, as I can check a flight for your journey with the best airlines.

USER: Sure.

ASSISTANT: There is an UA airline with flight number 1012 that leave from IAH and arrive at CLT with a total tariff of 100. Is that fine?

USER: Sure, you can proceed.

ASSISTANT: Your request for booking has been processed successfully.

USER: Thank you.

ASSISTANT: Thank you for choosing us.