You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you today?

USER: I want to visit Detroit, can you please help me to reserve ticket from HOU to DTW?

ASSISTANT: On which dates do you want to travel?

USER: Ok, my dates of journey is from 06/23 to 06/25.

ASSISTANT: May I know your name please?

USER: Sure, my name is Dorothy King here.

ASSISTANT: Yes King, no flight is available on your route HOU to LAX.

USER: Ok, no problem.

ASSISTANT: Thank you for choosing us.

USER: Most welcome.