You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you today?

USER: Catherine Robinson here. Can you please help me in booking a flight ticket from HOU to ATL?

ASSISTANT: Sure, when are you planning to depart and return on?

USER: Sure,I would like to start on Oct 26 and return on Oct 28.

ASSISTANT: Do you need a connecting flight or a direct flight?

USER: I need a connecting flight.

ASSISTANT: In which class do you want to fly?

USER: I am ok with any class.

ASSISTANT: Can I know your depart and arrival timings?

USER: I would like to return in morning.

ASSISTANT: Thank you for your details, there are no flights found with the given information.

USER: Ok, no issues. Thank you for the information.

ASSISTANT: Thank you.