You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you?

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

ASSISTANT: Sure, I am here to help you out. May I know your travel dates please?

USER: My trip dates are 05/07 and 05/09.

ASSISTANT: Can you please share your name for documentation purpose?

USER: Edward Hernandez here.

ASSISTANT: Is there any connection preference?

USER: I prefer to travel on a direct flight.

ASSISTANT: Do you have any other specification?

USER: No, thanks for asking.

ASSISTANT: Edward Hernandez, there are no flights available in your route with your preference?

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

ASSISTANT: Thank you for choosing us.