You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you?

USER: I am Carol Green, can you help me to book a connecting flight in this week?

ASSISTANT: Sure, could you please provide the codes of airport you want this booking for?

USER: My source is LAS and my destination is SEA.

ASSISTANT: Ok, may I know your travelling dates to search for the flight?

USER: My planned dates are 08/25 and 08/27.

ASSISTANT: Ok, please hold on for a moment I will check for available flights on your route.

USER: Sure.

ASSISTANT: Sorry to say, no flights were available on your route.

USER: Ok, no issues.

ASSISTANT: Thank you for choosing us, have a nice day.

USER: Thank you.