You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I  help you?

USER: I am planning to visit Atlanta, can you please book me a ticket from HOU to ATL?

ASSISTANT: Your travelling dates please?

USER: My planned dates of journey are Oct 12 and Oct 14.

ASSISTANT: Do you have any specifications?

USER: I prefer direct flight for this trip.

ASSISTANT: May I know your name please?

USER: My name is Sarah Jones.

ASSISTANT: I am sorry no flights found on your route?

USER: Ok, not an issue. Thank you for providing information.

ASSISTANT: Thank you for choosing us.