You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I guide you?

USER: My name is Michael Lee. I would like to visit my friends this weekend, can you help me in booking the ticket?

ASSISTANT: Sure, please provide your travelling details?

USER: It's from SFO to BOS. The dates of travel are from 10/01 to 10/03.

ASSISTANT: There is flight 1009 of Delta airlines on your requested dates.

USER: Please book the ticket.

ASSISTANT: Ok, your ticket is booked. Than.

USER: Thank you for assisting me.

ASSISTANT: Welcome.