You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I guide you for today?

USER: I would like to travel from IAH to IAD as a holiday trip.

ASSISTANT: Can you please share on what dates you are willing to travel?

USER: My trip dates are 03/27 and 03/29.

ASSISTANT: Are you looking for a connecting flight or direct flight?

USER: I need break in my journey.

ASSISTANT: Do you have any class preferences?

USER: I am comfortable with business class.

ASSISTANT: Do you have any other requirements that you are looking for?

USER: No.

ASSISTANT: Can you please provide your name to proceed further?

USER: Patricia Johnson here.

ASSISTANT: Sorry, there are no flights available at your request.

USER: No problem, Thanks for the information.

ASSISTANT: Thank you for contacting us, have a nice day.