You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Myself Pamela Miller. I need to travel Houston, can you please reserve flight ticket from ATL and HOU?

ASSISTANT: Sure, may I know your travelling dates?

USER: My travelling dates are Nov,12 and Nov,14.

ASSISTANT: Can I know your depart and return timing?

USER: My depart time should be in the evening.

ASSISTANT: Do you have any class preference?

USER: I don't have any specific class requirement.

ASSISTANT: Sorry, there are no flights available on your request.

USER: That's ok, I will choose any other source to travel my destination.

ASSISTANT: Thank you for reaching us.

USER: Thank you for searching flights.