You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Nicole Roberts.

ASSISTANT: How may I assist you?

USER: I am planning to visit talking sticks resort arena in Phoenix, PHX.

ASSISTANT: Ok.

USER: Can you help me to book a direct flight?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: From where would you wish to take off?

USER: I would like to take off from Boston, BOS.

ASSISTANT: Can you please share your planned journey dates?

USER: My trip dates are Nov 28 and 30.

ASSISTANT: Do you have any airline preference?

USER: I don't have any preferences.

ASSISTANT: Thank you for sharing the details. I am sorry to inform you that, there were no flights available that matches your requirements.

USER: Ok, no issues. Thanks for your effort.

ASSISTANT: Thank you for availing us.