You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Patricia Carter.

ASSISTANT: How may I oblige you today?

USER: I need to attend a training session at Dallas & Fort Worth, TX-DFW for new project, which we signed at last month. Could you please help me with booking a flight ticket?

ASSISTANT: Sure, can you help me with your source code?

USER: My source airport code is Houston, TX-HOU.

ASSISTANT: When your willing to travel?

USER: I want to departure on 01/17 and return on 01/19.

ASSISTANT: Do you have any specifications?

USER: I need a halt in between the journey.

ASSISTANT: There is a Spirit airline flight number 1021 with fare 100 having a connection. Shall I proceed?

USER: Yes, please proceed.

ASSISTANT: Your ticket has been reserved.

USER: Thank you for your help.

ASSISTANT: Thank you for availing us.