You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: Please help me to book a flight ticket from SFO and SEA.

ASSISTANT: Sure, I am glad to help you.

USER: Thank you.

ASSISTANT: May I know your connection limit?

USER: I would prefer single connection.

ASSISTANT: Ok, help me with your planned dates.

USER: June, 15 and June, 17 are my planned travel dates.

ASSISTANT: Can I have your name please?

USER: Rebecca Harris here.

ASSISTANT: Is there any other concerns?

USER: I need to return at afternoon time.

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

USER: Please proceed.

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

USER: Thank you.

ASSISTANT: Thank you for choosing us.