You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER:  I am Larry Scott want to travel to GA-ATL to organise an event. Can you book a ticket from WA-SEA?

ASSISTANT: Sure, may I know your travelling dates?

USER: My travelling dates are 09/15 and 09/17.

ASSISTANT: Do you need any halt?

USER: I need a connecting flight.

ASSISTANT: I am sorry to inform you there is no flight available for you.

USER: Ok, no issues. Thank you for your response.

ASSISTANT: Thank you for checking with us.