You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I support you today?

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

ASSISTANT: Sure, I am glad to help you. May I know your planned dates please?

USER: I prefer to travel on Sep 10 and Sep 12.

ASSISTANT: Ok, help me with your connection.

USER: I prefer to travel in a connecting flight.

ASSISTANT: Ok, please specify your name.

USER: I am Brandon Martinez.

ASSISTANT: Do you have any other concerns?

USER: I prefer to travel in a normal cost airline.

ASSISTANT: We found a connecting flight with a fare of 100 in 1003 American Airlines, shall I proceed?

USER: Ok, please confirm my booking.

ASSISTANT: Ok, your ticket has been confirmed in economy class.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us.