You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: I want to attend a conference with my team members in Chicago, ORD. Can you help me to book a flight ticket?

ASSISTANT: I am glad you have contacted us for help. I will help you. Please help me with your name.

USER: Thank you for accepting my request. Debra White here.

ASSISTANT: Please help me with your departure airport code.

USER: I want to depart from New York, EWR.

ASSISTANT: Please help me with your planned travelling dates.

USER: My planned journey dates are Aug 15 and 17.

ASSISTANT: Do you need a break in your journey?

USER: Yes, I need a break in my journey.

ASSISTANT: Debra White, do you have any other preferences in your journey?

USER: No, I have given all my requirements.

ASSISTANT: I highly regret to inform you that there are no flights available for your journey.

USER: Ok, no issues. Thank you.

ASSISTANT: Thank you for understanding. Thank you for reaching us. Have a great time.