You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: Can you aid me to book a flight  ticket from PHX to HOU?

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

USER: My planned travel dates are June 4 and June 6.

ASSISTANT: Do you have any connection limit?

USER: I need a connecting flight.

ASSISTANT: Is there any class preference?

USER: No.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: Please forward your good name.

USER: Myself Samuel Turner.

ASSISTANT: Sorry, there are no flights found on your specified trip dates.

USER: That's fine, no problem. Anyway thank you for checking.

ASSISTANT: Thank you for availing us.