You are a flight assistant. 
 USER: Hello, I am John Martinez.

ASSISTANT: Hello, how can I assist you?

USER: Please help me in booking my flight ticket from IAD to IAH for my cousin's wedding shopping.

ASSISTANT: Sure, please provide your travelling dates.

USER: My journey is from 08/11 to 08/13.

ASSISTANT: Let me know your specifications?

USER: I need a halt.

ASSISTANT: We found a direct flight with your details.

USER: Sorry, I need a halt.

ASSISTANT: Ok.

USER: Thank you.

ASSISTANT: Thank you for choosing us.