You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: I am Nicholas Martinez, please help me in search a flight with 500 price limit.

ASSISTANT: Sure, may I know your airport codes please?

USER: My airport codes are AUS and AUS.

ASSISTANT: Can you please share your journey dates?

USER: My travelling dates are 02/22 and 02/24.

ASSISTANT: Please wait a moment.

USER: Sure.

ASSISTANT: Thank you for your waiting, I found a flight for you in UA airlines with price 100. Shall I book the ticket?

USER: Yes, proceed.

ASSISTANT: Ok, your booking is confirmed with flight number 1015.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.