You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I would like to travel from HOU to PHL as a holiday trip.

ASSISTANT: Sure, please provide your planned travel dates.

USER: My trip dates are 06/27 and 06/29.

ASSISTANT: Can I have your name please?

USER: Robert Rodriguez here.

ASSISTANT: Do you have any connection preference?

USER: I need only direct flight.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: Robert Rodriguez, no flights has been found on your planned travel dates.

USER: No issue, Thanks for the information.

ASSISTANT: Thank you for approaching us.