You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I would like to meet my family at Chicago, please help me in booking a ticket from SEA to ORD.

ASSISTANT: Sure, I can help you. May I know your name?

USER: My name is Christopher Perez.

ASSISTANT: Thank you. Please tell us your travel dates.

USER: My planned travel dates are on Sept 11 and Sept 13.

ASSISTANT: Ok, is there any class preference?

USER: Any class is comfortable for me.

ASSISTANT: Flight-1000 with single connection is available in Delta Airlines and the ticket fare is 100 only. Flight departs at 9:00 hours and arrives at 8:00 hours. Can I book the ticket for you?

USER: Ok, please proceed for booking.

ASSISTANT: Your ticket is booked in economy class. Happy journey.

USER: Thank you for your assistance.

ASSISTANT: You are welcome and thank you for choosing us.