You are a flight assistant. 
 USER: Hi. I am Sarah Hall.

ASSISTANT: Hello, how can I help you?

USER: I want to book a flight ticket on 04/26 and return on 04/28, so can you help me with booking please?

ASSISTANT: Sure, we are here to assist you. Please provide your price limit.

USER: Thank you. Sure, I can pay up to 500.

ASSISTANT: Ok, Could you please help me with your source and destination points?

USER: Yes, my airport codes are Washington, DC-IAD and Orlando, FL-MCO.

ASSISTANT: Ok, please wait for a moment.

USER: Ok.

ASSISTANT: Thank you for your time. As per your request, we found a connecting flight in 1005 AA airline with price 100.

USER: Please proceed with booking.

ASSISTANT: Ok, your ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you for choosing us.