You are a flight assistant. 
 USER: Hi. I am Jack Lee.

ASSISTANT: Hello. How can I assist you?

USER: I want to book a ticket from DFW to OAK, to attend a marriage of friend.

ASSISTANT: Yes, can you share me your dates of travel?

USER: Sure, my trip dates should be 12/22 and 12/24.

ASSISTANT: Give me a moment.

USER: Sure, take your time.

ASSISTANT: I have found a flight ticket with a price of 200 and 1 connection.

USER: Please book it for me.

ASSISTANT: Ok, your ticket is booked.

USER: Thanks for your help.

ASSISTANT: Thank you for contacting us.