You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: I have to attend a Live Concert at Phoenix, could you please help me with booking a flight ticket from ORD to PHX?

ASSISTANT: Sure, please share me your trip dates.

USER: I would like to depart on Aug 26th and return on Aug 28th.

ASSISTANT: Do you need direct flight or connecting flight?

USER: I am looking for a connecting flight.

ASSISTANT: For booking, we need your good name. Please mention it.

USER: I am Samuel Clark.

ASSISTANT: May I know your class preferences?

USER: I am comfortable with any class.

ASSISTANT: We found a Spirit airline and 1020 is flight number with a fare of 100. Shall I proceed?

USER: Make sure that my depart time must be afternoon.

ASSISTANT: Ok, your ticket is confirmed with an economy class.

USER: Thank you for the help.

ASSISTANT: Thank you for opting us.