You are a flight assistant. 
 USER: Hello, I am Edward Collins from Philadelphia.

ASSISTANT: Hello, what can I do for you today?

USER: I have planned to visit Houston, TX - HOU to overview the city. Can you please help me for booking?

ASSISTANT: Sure, I am glad to help you. May I know your scheduled dates?

USER: My scheduled dates are 04/14 and 04/16.

ASSISTANT: Ok, please share your source point.

USER: My source is Philadelphia, PA - PHL.

ASSISTANT: Ok, do you need any connection in between your journey?

USER: Yes, I need a halt.

ASSISTANT: Ok, please wait.

USER: Ok.

ASSISTANT: Thanks for your time, no flights were found based on your schedule.

USER: Ok, no worries. Thank you.

ASSISTANT: Thank you for choosing us.