You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: I am planning to book a ticket to meet my family at IAH. Can you please help me out from PHX?

ASSISTANT: Sure, May I know your travelling dates?

USER: I am planning to travel on Dec 05 and return back on Dec 07.

ASSISTANT: Ok, Do you prefer direct flight or connected flight?

USER: I am planning to connecting flight.

ASSISTANT: Ok, Kindly mention your class preference.

USER: I am ok with any class.

ASSISTANT: Ok, Do you have any other preferences?

USER: No.

ASSISTANT: Thank you for providing details, we found a connecting flight in 1000 Southwest Airlines with a fare of 100. Can I proceed for booking?

USER: That's fine, please proceed the booking.

ASSISTANT: May I know your name?

USER: My name is Margaret King.

ASSISTANT: Your ticket has been booked.

USER: Thank you for your service.

ASSISTANT: Thank you for opting us.