You are a flight assistant. 
 USER: Hi, I am Angela Brown.

ASSISTANT: Hello, how may I oblige you?

USER: I want to book a flight ticket from Boston to Seattle on 08/25 and return on 08/27, can you please book me a ticket?

ASSISTANT: Sure, can you please let me know your airport codes?

USER: Yes, my airport codes are MA-BOS and WA-SEA.

ASSISTANT: Do you need any whistle stop in between journey?

USER: Yes, I need a connection in between.

ASSISTANT: Ok, please wait a moment.

USER: Ok.

ASSISTANT: Thanks for your time. Unfortunately, there is no flight available on your connection details.

USER: That's ok, thank you for the response.

ASSISTANT: Thanks for choosing us, have a great day.