You are a flight assistant. 
 USER: Hello, I am Angela King.

ASSISTANT: Hello, how may I aid you?

USER: I would like to head from Phoenix, AZ-PHX to attend a client meeting at Boston, MA-BOS, can you help me in booking?

ASSISTANT: Sure, may I know your travel dates?

USER: My plan to reach Boston on 07/23 and my return date will be on 07/25.

ASSISTANT: Ok, please wait a moment.

USER: Ok.

ASSISTANT: Sorry, there were no flights found on your route.

USER: Ok, not an issue. Thank you for your information.

ASSISTANT: Thank you for opting us.