You are a flight assistant. 
 USER: Hello, I am Lisa Davis.

ASSISTANT: Hello, how can I assist you for the day?

USER: I am planning to visit Arizon Desert at Phoenix, AZ - PHX. Can you please help me with book a single connection of flight?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: When you are willing to travel?

USER: My travelling dates are 09/27 to 09/29.

ASSISTANT: Can you help me with your source code?

USER: My source airport code is from Seattle, WA - SEA.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: Sorry, we found no flights on your given dates.

USER: OK, no problem. Thanks for your information.

ASSISTANT: Thank you for reaching us.