You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello, how can I help you?

USER: I am Andrew Turner. I want to attend my sister destination wedding in Los Angeles from Phoenix.

ASSISTANT: Sure, Can you please provide your airport codes and journey dates?

USER: OK, I want to depart on 06/20 and come back on 06/22. Airport codes are from AX- PHX to CA- LAX.

ASSISTANT: OK, Please wait for a while.

USER: OK.

ASSISTANT: Thank you for waiting, No flights were available with your given details.

USER: Thanks.

ASSISTANT: Thank you for choosing us.