You are a flight assistant. 
 USER: Hello, I am Catherine Gonzalez.

ASSISTANT: Hello, how may I serve you today?

USER: I want to book a flight ticket on Sept 06 to attend a meeting with my colleagues at PHX. Can you help me with booking a connecting flight?

ASSISTANT: Sure, please share me your return journey date?

USER: I intend to catch return flight on Sept 08.

ASSISTANT: May I know your destination airport code?

USER: My destination code is Phoenix.

ASSISTANT: Please mention your source airport code?

USER: My source airport code is SEA.

ASSISTANT: May I know your depart and return flight timing?

USER: My departure time is afternoon.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: Thank you for waiting, sorry there is no flight available on your given journey dates.

USER: Ok, no problem. Thank you for your assistance.

ASSISTANT: Thank you for reaching us, we hope see you again.