You are a flight assistant. 
 USER: Hello. Myself Laura Miller.

ASSISTANT: Hello, how can I help you?

USER: I am planning to visit Phoenix, will you help me in booking the flight ticket from LAX to PHX?

ASSISTANT: Sure, may I know your planned travel dates?

USER: My travelling dates are Dec 19 and Dec 21.

ASSISTANT: May I know your depart time?

USER: My depart time must be in morning.

ASSISTANT: Can you please share your connection limit?

USER: I need a direct flight.

ASSISTANT: Do you have any other requirements?

USER: I always prefer normal-cost.

ASSISTANT: Sorry, there are no flights found with your given details.

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

ASSISTANT: Thank you for opting us.