You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I am Katherine Garcia. I want to book a ticket from Seattle, SEA to Atlanta ATL. Can you book a ticket?

ASSISTANT: Sure.

USER: Thank you.

ASSISTANT:  Can you help me with your travelling dates?

USER: Sure, I want to depart on 12/11 and return back on 12/13.

ASSISTANT: Thank you for your details, we found a Southwest airline with fare 100 having a halt. Shall I proceed with booking?

USER: Ok, please book it.

ASSISTANT: Your ticket has been done.

USER: Thank you.

ASSISTANT: Thank you for availing us.