You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I amend you now?

USER: I am Amy Green. I need book a flight ticket with direct flight, Can you please help me for booking from IAD to OAK?

ASSISTANT: Sure, I am perky to help you.

USER: Thank you.

ASSISTANT: To move further in booking, can I have your specifications?

USER: I need a price limit with in 500.

ASSISTANT: Ok. Let me know your journey dates please.

USER: I would like to travel on 05/04 to 05/06.

ASSISTANT: We found a connecting flight for you. Is it comfortable?

USER: No, don't  proceed for booking.

ASSISTANT: Ok, thank you for aiding us.

USER: Thanks for your information.