You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: I am Matthew Collins. I am looking for a direct flight from Houston, can you please help me to book a flight from IAH to ATL?

ASSISTANT: Sure, can you please share your journey dates?

USER: Sure, my journey dates are Oct 30 and Nov 01.

ASSISTANT: Do you have any specifications to be met?

USER: I can afford 1000.

ASSISTANT: Ok, please wait a moment.

USER: Sure, I will wait for your response.

ASSISTANT: Thank you for your time, unfortunately no flights found on that route.

USER: That's ok, thank you for checking.

ASSISTANT: Thank you for opting us.