You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, what can I do for you today?

USER: I would like to travel from IAD to ORD as a holiday trip. Can you do the reservation?

ASSISTANT: Sure, I am glad to help you.

USER: Thank you.

ASSISTANT: When you have planned to travel?

USER: My journey dates are 11/12 and 11/14.

ASSISTANT: Ok, please share your class preference.

USER: I am comfortable with any class.

ASSISTANT: Ok, please specify your name.

USER: Richard Garcia here.

ASSISTANT: Do you have any other essentials to meet?

USER: I need break in my journey.

ASSISTANT: We are sorry to say that, no flights were found based on your information.

USER: No problem, Thanks for the information.

ASSISTANT: Thank you for choosing us.