You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I support you?

USER: As I am a scientist, I want to attend science festival with my students at San Francisco. Can you help me to book a ticket?

ASSISTANT: Sure, may I know when to want to make your trip?

USER: Dates are 12/11 and 12/13.

ASSISTANT: Kindly mention your airport codes.

USER: My airport codes are DFW-SFO.

ASSISTANT: Ok, please give me a moment.

USER: Sure.

ASSISTANT: Southwest airline with flight number 1013 and price of 200 available at this moment. Shall I proceed?

USER: Go ahead.

ASSISTANT: May I know your name to proceed?

USER: Jeffrey Roberts here.

ASSISTANT: Your booking has been confirmed.

USER: Thank you.

ASSISTANT: Thank you for opting us.