You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Rachel Nelson, can you help me to book a flight with 500 price limit?

ASSISTANT: Sure, I will help you with booking, can you please share your travelling dates?

USER: I would like to travel on 05/19 and 05/21.

ASSISTANT: Ok, please share your journey airport codes?

USER: My airport codes are PHL and ATL.

ASSISTANT: UA airline is providing flight with connection 1 price 100 as per your details, can I proceed to booking?

USER: Please proceed with booking.

ASSISTANT: Your ticket is booked by flight number 1010.

USER: Thank you.

ASSISTANT: You are welcome.