You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: My name is Robert Scott and I want you to book a flight from LGA to DCA. Will you help me?

ASSISTANT: Sure, may I know your travel dates?

USER: I want to start on 10/23 and return back on 10/25.

ASSISTANT: How much you can afford for this ticket?

USER: I can pay up to 500.

ASSISTANT: We found a flight on your details with airline Frontier, flight number:1016. Shall I book this ticket?

USER: Do me a favour and look for a direct flight please.

ASSISTANT: Sorry, there is no direct flight on your details.

USER: No problem, thank you for checking it.

ASSISTANT: Thank you.