You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: I want to book a flight ticket from LAS to PHX. Could you help me in booking?

ASSISTANT: Sure, may I know your name please?

USER: Larry King here.

ASSISTANT: May I know your travelling dates please?

USER: My travelling dates are from Apr 05-07.

ASSISTANT: Is there any specific class preference  for you?

USER: No.

ASSISTANT: May I know your airline preference?

USER: I am comfort with any.

ASSISTANT: May I know your connection limit please?

USER: I prefer for single connecting flight.

ASSISTANT: May I know your preferable time for journey?

USER: I am comfort with any time.

ASSISTANT: There is a connecting flight of fare 200 with economy flight in Spirit airline, shall I proceed for booking?

USER: Yes, please proceed.

ASSISTANT: Your reservation has been confirmed with flight number 1024.

USER: Thank you.

ASSISTANT: Thank you for reaching us.