You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Richard Williams.

ASSISTANT: How may I aid you?

USER: I want to book a flight ticket within 200. Can you help me to book a flight ticket?

ASSISTANT: Sure, help me with the airport codes?

USER: MSP and ATL are my airport codes.

ASSISTANT: Can you please share your trip dates?

USER: 10/17 and 10/19 are my travelling dates.

ASSISTANT: We found a flight in an airline Southwest with 1012 number having a single connection price of 100. Shall I reserve?

USER: You can reserve it for me.

ASSISTANT: Your flight ticket has been booked in an economy class.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.