You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: William Thomas here, I have ted show to attend at Minneapolis, can you help me to book a ticket?

ASSISTANT: Ok, may I know your nearest airport codes?

USER: My airport codes are EWR to MSP.

ASSISTANT: Can you please tell me your trip dates?

USER: Search the flights from 07/08 and 07/10.

ASSISTANT: Please wait a moment.

USER: Make sure that its price is under 500.

ASSISTANT: As per your request, I found a flight-1028 with single connection and the airline is Southwest.

USER: Please book my ticket.

ASSISTANT: Your booking is confirmed.

USER: Thank you for booking.

ASSISTANT: Thank you for opting us.

USER: Welcome.