You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Gary Lewis.

ASSISTANT: How can I help you?

USER: I need to book a ticket from LAX to IAH, can you please help me in booking?

ASSISTANT: Your travelling dates please?

USER: My travel dates are from Feb 05 to Feb 07.

ASSISTANT: There is a direct flight, can I proceed for booking in 1006 flight?

USER: Please look for the flight  in business class and depart time should be in the morning.

ASSISTANT: I am sorry no flights found as per your preference.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for choosing us.