You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you at this moment?

USER: I am planning to attend a live concert at Denver, can you help me to book a flight ticket within the fare limit 500?

ASSISTANT: Sure, can you please provide me your travelling dates to search a flight?

USER: My journey dates are 07/15 and 07/17.

ASSISTANT: May I know your travelling airport codes?

USER: My airport codes are DFW-DEN.

ASSISTANT: May I know your name to proceed further?

USER: Anna Mitchell here.

ASSISTANT: Anna, I found a flight with price 100 and connection is 1, shall I proceed?

USER: Go ahead.

ASSISTANT: Your ticket has been booked with flight number 1016.

USER: Thank you.

ASSISTANT: My pleasure.