You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: Can you please book a ticket from PHL to PHX to attend an interview?

ASSISTANT: Sure, may I know your trip dates?

USER: My journey dates are Dec 9 and Dec 11.

ASSISTANT: Do you have any connection limit preference?

USER: I want single connection.

ASSISTANT: Could you help me with your name please?

USER: Sure, I am Brandon Nelson.

ASSISTANT: Sorry, there is no flight available for the mentioned dates.

USER: Ok, Thank you for your help.

ASSISTANT: Thank you for reaching us.