You are a flight assistant. 
 USER: Hello, Barbara Davis here.

ASSISTANT: Hello. How can I help you?

USER: I planned to meet some of my old students in SEA, can you please help me to book a flight ticket from SFO?

ASSISTANT: Sure may I know your travel dates please?

USER: I would like to start on 07/26 and return back on 07/28.

ASSISTANT: Just a second please.

USER: Ok.

ASSISTANT: I found a flight with 1013 number, can I proceed  with booking in single connection?

USER: Yes, please confirm my booking.

ASSISTANT: Your booking is confirmed in Frontier airline, it costs you only 100. Thank you for choosing us.

USER: Thank you for your service.

ASSISTANT: Have a happy journey?