You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I planned to meet my cousin in LAX, can you please help me to book a flight ticket from SEA?

ASSISTANT: Can I know your travelling dates?

USER: I prefer to travel on Sep 23 and Sep 25.

ASSISTANT: Let me know your name.

USER: I am David Roberts.

ASSISTANT: Do you have any preference?

USER: I prefer to travel in a connecting flight.

ASSISTANT: Found ticket with American airlines for price 100 having flight number 1015.

USER: Ok, please confirm my booking.

ASSISTANT: Ticket is booked.

USER: Thank you for your help.

ASSISTANT: Thank you.