You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I am Samantha Young. Can you help me in booking my flight ticket from DEN to SFO?

ASSISTANT: Sure, we are happy to help you. Can you please let me know your travelling dates?

USER: I will start on Oct, 15 and return on Oct, 17.

ASSISTANT: Ok, do you need any break in between journey?

USER: Yes, I need a break.

ASSISTANT: Is there any other specifications for you?

USER: No.

ASSISTANT: Thanks for providing details, there is a flight found in Spirit airline with a fare of 100 and the flight number is 1004. Shall I proceed?

USER: Please proceed.

ASSISTANT: Ok, your ticket has been reserved in economy class.

USER: Thank you.

ASSISTANT: Thank you for choosing us.