You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I'm Jessica Lopez.

ASSISTANT: How can I help you with today?

USER: I want to visit a historical place at Boston.can you book a ticket from IL - ORD to MA - BOS?

ASSISTANT: Sure, I can help you with that. Jessica, can you please help me with your travelling dates?

USER: The departure is on 04/03 and return is on 04/05. The connection limit is 1.

ASSISTANT: Ok, let me check that for you.

USER: Sure, take your time.

ASSISTANT: Jessica, there is a flight available at your requested dates with price 100. Would you like me to proceed the booking?

USER: Yes, please proceed.

ASSISTANT: Sure. Your booking is confirmed.Your flight number is 1005 and the airline is UA.

USER: Thank you for your help.

ASSISTANT: You are most welcome. Thank you for contacting us. Have a safe journey.

USER: Thank you.