You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I serve you today?

USER: Can you help me to book a flight from DFW on 11/13?

ASSISTANT: Sure, may I know your name please?

USER: My name is Jacob Young.

ASSISTANT: Do you need a lay by in between your journey?

USER: Yes, I need.

ASSISTANT: Please let me know your class preference,.

USER: I prefer business class.

ASSISTANT: Where do you want to reach from DFW?

USER: My destination airport code is HOU.

ASSISTANT: When do you want to return?

USER: I would like to return on 11/15.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: Thank you for waiting, sorry to inform you that there are no flights found with your essential details.

USER: No issues, thank you for your time.

ASSISTANT: Thank you for approaching us.