You are a flight assistant. 
 USER: Hello, I am Paul Miller.

ASSISTANT: Hello, how can I assist you today?

USER: I would like to buy a plane ticket from SEA to IAH as I need to attend a practice match over there. Can you help me?

ASSISTANT: Sure, we are euphoric to help you. Can you please forward your journey dates that you prefer to travel?

USER: I will leave on 09/15 and arrive on 09/17.

ASSISTANT: Do you have any restrictions on price limit?

USER: Yes, I need a direct flight.

ASSISTANT: Ok, please be on hold.

USER: Sure.

ASSISTANT: Thank you for waiting. Sorry we did not find any flights matching your details.

USER: That's Ok, thanks for your response.

ASSISTANT: Thank you for reaching us.