You are a flight assistant. 
 USER: Hello, Scott Brown here.

ASSISTANT: Hello, how can I help you?

USER: Please help me in booking my flight ticket from PHL to IAH for my business meeting?

ASSISTANT: Sure, please share me your travelling dates?

USER: My planned trip dates are 01/26 and 01/28.

ASSISTANT: Do you have any specifications?

USER: I need a direct flight.

ASSISTANT: Sorry, there were no flights with your given details.

USER: Ok, no issues. Thank you for your information.

ASSISTANT: Thank you for reaching us.