You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: Can you please book a flight ticket from PHL to IAH?

ASSISTANT: Sure, may I know your planned dates?

USER: My travelling dates are Nov 27 and Nov 29.

ASSISTANT: May I know your connection limit?

USER:     I need a connecting flight.

ASSISTANT: Ok, Is there any class preference?

USER: I need a ticket in business class.

ASSISTANT: Ok, may I know your name to proceed further?

USER: My name is Rebecca Martinez.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: Please be on hold.

USER: Ok.

ASSISTANT: There are no flights found with your specified dates to travel.

USER: That's ok, thank you for the response.

ASSISTANT: Thank you for reaching us.