You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: I am Andrew Garcia. Can you help me booking a flight ticket from IAD to ORD?

ASSISTANT: Sure, Can you please share your trip dates with us?

USER: I will start on Dec, 12 and return on Dec, 14.

ASSISTANT: Which flight do you prefer either connecting or direct?

USER: I need a break in my journey.

ASSISTANT: Do you have any specifications?

USER: No.

ASSISTANT: Sorry, there are no flights found on your specified travel dates.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for availing us.