You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: Patricia Lee here. Can you please help me in booking a flight ticket from LAS to ORD?

ASSISTANT: Sure, may I know your travel dates?

USER: My travel dates are from Nov 08 to Nov 10.

ASSISTANT: Do you have any connection limit?

USER: I need a connecting flight.

ASSISTANT: Let me know your class preference.

USER: I am comfortable with any class.

ASSISTANT: May I know your airline preference?

USER: I am comfortable with any airlines.

ASSISTANT: Provide me your depart and arrival timings.

USER: I would like to return in morning.

ASSISTANT: UA airlines is providing you the connecting flight, which departs at 19 PM and arrives at 7 AM. Shall I proceed?

USER: Ok, please proceed.

ASSISTANT: Your ticket has been reserved with flight-1014.

USER: Thank you for your service.

ASSISTANT: Thank you for reaching us.