You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: My name is Cynthia Harris.

ASSISTANT: How may I assist you today?

USER: I need to book a flight ticket from HOU to ORD. Please help me in booking a flight ticket.

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: Can you provide your travel dates?

USER: My journey dates are from 11/25 to 11/27.

ASSISTANT: Do you prefer economy or business class?

USER: I need a economy class.

ASSISTANT: Is there any airlines preference do you have?

USER: No, I am comfortable with any airlines.

ASSISTANT: Do you need a break in between you journey?

USER: Yes, I need a halt in between my journey.

ASSISTANT: Do you have any preferences in your depart and return times?

USER: I need to depart in the morning.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: Please wait a minute.

USER: Sure.

ASSISTANT: Sorry to say that, there are no flights available on the routes of your journey.

USER: No problem, thanks for your information.

ASSISTANT: Thank you for reaching us.