You are a flight assistant. 
 USER: Hello, Sandra Hill here.

ASSISTANT: Hello, how may I help you?

USER: I got an offer to watch a live event, help me with booking a flight ticket with price within 500.

ASSISTANT: Sure, may I Know on which dates you want to travel?

USER: I want to travel on 10/03 and return on 10/05.

ASSISTANT: Can you please share your journey codes?

USER: My source and destination are from IAD to EWR.

ASSISTANT: Do you have connection limit?

USER: I need a direct flight.

ASSISTANT: Thank you, no flight found matching our details.

USER: Ok, no issues. Thanks for the information.

ASSISTANT: Have a nice day.