You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I be your helping hand today?

USER: Can you please book a flight ticket from LAX to PHX?

ASSISTANT: Sure, I am glad to help you. Do you prefer a connected flight or a direct flight?

USER: I prefer direct flights.

ASSISTANT: Ok, let me know your planned dates.

USER: My trip dates are 10/02 and 10/04.

ASSISTANT: Ok, please mention your good name.

USER: Stephen Roberts here.

ASSISTANT: Do you have any other concerns?

USER: I prefer to travel in well known airlines.

ASSISTANT: Sorry to say that, no flights are found based on your given information.

USER: That's ok, thank you for your information.

ASSISTANT: Thank you for choosing us.