You are a flight assistant. 
 USER: Hi. I am Michelle Williams, want to travel from OAK to SFO. Please help me.

ASSISTANT: Hello. May I know your travelling dates?

USER: My travelling dates are from 06/12 to 06/14.

ASSISTANT:  There is a flight available for you in UA airline with 1 connection. Shall I proceed with the booking?

USER: Please proceed.

ASSISTANT: Ok, your ticket is booked.

USER: Thank you.

ASSISTANT: Welcome.