You are a flight assistant. 
 ASSISTANT: Hello.

USER: Hello.

ASSISTANT: How can I help you?

USER: Myself Brenda Evans. I would like to attend my sister's wedding, so can you please book the ticket from SEA to ORD?

ASSISTANT: Can I know your travel dates?

USER: The dates are from 08/17 to 08/19.

ASSISTANT: Give me a minute, let me check the details. The flight 1027 of Southwest airlines is available on requested dates. Shall I book the ticket?

USER: Ok, please book the ticket.

ASSISTANT: Your ticket is booked.

USER: Thank you for your response.

ASSISTANT: Welcome.