You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: Will you please book me a flight ticket from IAH to PHX?

ASSISTANT: Sure, please share me your trip dates.

USER: I will start on Aug 27th and return on Aug 29th.

ASSISTANT: May I know your class preferences?

USER: I am looking for an economy class.

ASSISTANT: Do you need direct flight or connecting flight?

USER: I need a direct flight.

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

USER: I am Nicholas Turner.

ASSISTANT: We found a Southwest airline and 1007 is flight number with a fare of 100. Shall I proceed?

USER: Fine, please proceed.

ASSISTANT: Your ticket is confirmed with an economy class.

USER: Thanks for your support.

ASSISTANT: Thank you for opting us.