You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello. How can I help you today?

USER: I am Christopher Walker. Can you help me in booking a flight ticket from JFK to OAK?

ASSISTANT: Sure, can you share me your travelling dates?

USER: I want to travel on 05/31, and need to catch return flight on 06/02.

ASSISTANT: There is a flight with 0 connection and airfare is 100. Can I proceed to booking?

USER: Proceed with the booking.

ASSISTANT: Your ticket has been reserved.

USER: Thanks for the help.

ASSISTANT: Thank you for opting us.