You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, May I know your good name?

USER: I am James Taylor.

ASSISTANT: How can I assist you?

USER: I want to surprise my friend by celebrating birth day at Charlotte on 08/02. So, please book a ticket under the price range of 500.

ASSISTANT: Ok. May I know your return date?

USER: I should return on 08/04.

ASSISTANT: Could you please tell me your airport codes?

USER: My source code is MSP. And destination code is CLT.

ASSISTANT: I am happy to say that there is a flight available that matches with your requirements. Airline:Southwest, flight number:1012 with price 100 and 1 connection. Shall I proceed with booking?

USER: Yes, please.

ASSISTANT: Your booking is successful.

USER: Thanks for your service.

ASSISTANT: Thank you for reaching us.