You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: I want to visit a San Francisco on these days that is 01/16 and 01/18. Can you find a flight ticket for me?

ASSISTANT: Sure, may I know your airport codes?

USER: Sure, my airport codes are from BOS to SFO.

ASSISTANT: There is a flight with 2 connections in airline Southwest. Can I book it?

USER: Yes, proceed with the booking.

ASSISTANT: May I know your name?

USER: Yes, I am Susan Phillips.

ASSISTANT: Your ticket is reserved, happy journey.

USER: Thank you for spending your valuable time.

ASSISTANT: Thank you for reaching us.