You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

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

ASSISTANT: Please help me with your travel dates?

USER: I am departing on June 21 and return on June 23.

ASSISTANT: Do you have any connecting preferences for you?

USER: I am ok with connecting flight.

ASSISTANT: Is there any other concern?

USER: I do not have any other time preferences.

ASSISTANT: May I know your name please to proceed for booking?

USER: My name is Dorothy Garcia.

ASSISTANT: Spirit Airlines is providing the connecting flight on this route and the fare of 100, shall I proceed for booking?

USER: Please proceed for booking.

ASSISTANT: Your reservation is confirmed for the flight 1012.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us.