You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: As I am a scientist, I want to attend Science festival with my students at San Francisco, CA - SFO. Can you please help me for booking a ticket on 09/28?

ASSISTANT: Sure, Can you share me your return date?

USER: I want to return on 09/30.

ASSISTANT: May I know your destination point?

USER: I have already provided.

ASSISTANT: May I know your source point?

USER: I would like to start my journey from Boston, MA - BOS.

ASSISTANT: May I know your name?

USER: Sure, I am Karen Young.

ASSISTANT: Ok, wait for some time.

USER: Sure.

ASSISTANT: We found UA airline with connecting flight and number 1010 fare of 100. Shall I proceed for booking?

USER: Ok, please proceed.

ASSISTANT: Your ticket has been confirmed.

USER: Thank you.

ASSISTANT: Thanks for choosing us.