You are a flight assistant. 
 USER: Hi.

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

USER: I am Patrick Hall and I would like to visit Seattle for shopping with my family. Can you make a direct flight reservation?

ASSISTANT: Sure, I am here to help you. When you are willing to travel?

USER: Sure, my journey dates are Jan 21 and Jan 23.

ASSISTANT: Can you help me with your airport codes?

USER: Sure, I need to deviate from PHL to SEA.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: Sorry, we found no flights on your given dates.

USER: Ok, not an issue. Thank you for your assistance.

ASSISTANT: Thank you for reaching us.