You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Can you please assist me with booking a flight from Phoenix, AZ to Boston, MA to meet my family in this summer?

ASSISTANT: Sure, please share your journey dates?

USER: I will be starting my journey on 6th of April and return back on 8th of April.

ASSISTANT: Do you have any specifications?

USER: I only need a direct flight for my journey, I don't have any other requirements.

ASSISTANT: May I know your good name?

USER: My name is Christopher Smith.

ASSISTANT: Sorry, no flights found on your given details.

USER: Oh! That's fine, thank you for checking anyways.

ASSISTANT: Thank you for choosing us.

USER: You are welcome.