You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: I want to book a ticket from ORD to HOU to attend seminar, can you help me in booking?

ASSISTANT: Sure, may I know your planned travel dates?

USER: I am departing on Aug 07 and return on Aug 09.

ASSISTANT: Do you have any limits on number of connections?

USER: I prefer a connecting flight.

ASSISTANT: Do you have any another specifications on your journey?

USER: I do not have any specifications.

ASSISTANT: May I know your name for the booking process?

USER: My name is Lisa Mitchell.

ASSISTANT: United Airlines providing a flight with the price 100 with single connection. Can I proceed for the booking?

USER: Please proceed for booking.

ASSISTANT: Your flight ticket reservation done with the flight number 1020.

USER: Thank you for your help.

ASSISTANT: Welcome, thank you for reaching us.