You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I aid you for the day?

USER: I am Christopher Thomas, Can you help in booking a ticket from OAK to reach LAS?

ASSISTANT: Sure, let me know your connection limit please.

USER: Sure, I prefer to travel in connecting flight.

ASSISTANT: On what dates would you like to travel?

USER: Nov 19th - Nov 21st are my dates of travel.

ASSISTANT: Do you have any other preferences to meet?

USER: I am comfortable to travel in any class.

ASSISTANT: Ok, please hold on.

USER: Sure.

ASSISTANT: Thanks for waiting, I found a connecting flight in an economy class with American airlines. Shall I confirm it?

USER: Kindly, proceed with my booking.

ASSISTANT: Your ticket has been booked with flight number 1007.

USER: Thank you for assisting me.

ASSISTANT: Thank you for reaching us.