You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

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

ASSISTANT: Sure, let me know your travelling dates?

USER: I will start on Oct 5th and return on Oct 7th.

ASSISTANT: Do you prefer direct flight or connecting flight?

USER: I need 1 lay by.

ASSISTANT: Is there any other specifications?

USER: No.

ASSISTANT: May I know your good name?

USER: I am Elizabeth Nelson.

ASSISTANT: We found a Spirit airline with flight number 1004 with fare 100 and class is economy. Shall I proceed?

USER: Fine, please proceed.

ASSISTANT: Your flight ticket has been confirmed.

USER: Thanks for your support.

ASSISTANT: Thank you for availing us.