You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you today?

USER: My name is Patrick Carter, I want to book a direct flight to meet my parents. Can you book a flight with in fare of 500?

ASSISTANT: Sure, I am here to help you in booking. Can I have your travel dates please?

USER: I will fly on Nov 11 and return on Nov 13.

ASSISTANT: Please hold on for a while. Ok, may I know your travelling airport codes?

USER: I will fly from HOU to DTW.

ASSISTANT: Flight 1006 in Spirit airlines is available for you with 1 connection and it costs you 100. Can I proceed?

USER: Please proceed with booking.

ASSISTANT: Your booking is done, have a safe journey.

USER: Thank you for helping me.

ASSISTANT: Thank you for reaching us.