You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you today?

USER: I am Helen Allen. I need to book a ticket from DFW to PHX. Could you help me?

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: Let me know your travelling dates?

USER: My preferable dates are from 01/27 to 01/29.

ASSISTANT: Do you need any halt in between your journey?

USER: Yes, I need a halt in between my journey.

ASSISTANT: Ok, wait for a while.

USER: Ok.

ASSISTANT: We found Southwest airline with connecting flight and number 1004 fare of 200. Shall I confirm it?

USER: Yes, please proceed.

ASSISTANT: Your ticket has been confirmed.

USER: Thank you.

ASSISTANT: Thanks for approaching us.