You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hi,.

USER: I am Nicholas Phillips.

ASSISTANT: How shall I serve you?

USER: I would have loved to celebrate transportation festivals in DC - IAD.

ASSISTANT: OK.

USER: Could you please help me to book a ticket from IL - ORD?

ASSISTANT: Sure,will you please provide your travelling dates?

USER: My travelling dates will be on 08/30 to 09/01. I need direct flight.

ASSISTANT: Give me a minute, I will get back to you.

USER: Sure.

ASSISTANT: Thank you for being patient. We have found a flight with one connection. Do you want me to continue?

USER: Ok, do not proceed. Thank you.

ASSISTANT: OK,fine. Thank you for choosing us.