You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you for the day?

USER: I would like to book a ticket to attend a meeting at IAH to EWR. Can you please help me out?

ASSISTANT: Sure, when are you planning to start and return on?

USER: I am planning to travel on Jan 26 and return back on Jan 28.

ASSISTANT: Do you need a connecting or a direct flight?

USER: I am ok with any connection but I am looking for a business class.

ASSISTANT: Do you have any other requirements so that we can find a best flight for you?

USER: No.

ASSISTANT: By what name should I reserve the flight ticket?

USER: I am Brenda Rodriguez.

ASSISTANT: Thank you for your information, there are no flights found with the business class.

USER: That's fine, thank you for your service.

ASSISTANT: Thank you.