You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how best can I oblige you today?

USER: I am planning to attend music concert at HOU, can you please help me with booking a flight ticket from PHX?

ASSISTANT: Sure, when do you want to start and return on?

USER: I would like to take off on Dec 29 and return on Dec 31.

ASSISTANT: Do you need a connecting flight?

USER: I am looking for a connecting flight.

ASSISTANT: Do you have any other specifications?

USER: I don't have any other specification.

ASSISTANT: Can I know your good name?

USER: My name is Dorothy Roberts.

ASSISTANT: Thank you for your details, there is a flight with class economy which is in Delta airline. Shall I proceed?

USER: Yes, please proceed with the booking.

ASSISTANT: Your ticket has been confirmed with a flight number 1000.

USER: I appreciate your help, thank you.

ASSISTANT: Thank you.

USER: You are welcome.