You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you?

USER:  I am Timothy Campbell. Could you please help me in searching a flight ticket from DCA to OAK?

ASSISTANT: Sure, We are here to help you. Do you need a break in the middle of your way?

USER: Yes, I need connecting flight.

ASSISTANT: On what dates you want me to book the ticket?

USER: My travelling dates are Oct 18 and Oct 20.

ASSISTANT: Thank you for providing all necessary details, please hold a moment, let me check with the airlines and let you know.

USER: Ok, I will wait for your reply.

ASSISTANT: We found a AA airlines, flight number:1009 and the price is 100.

USER: Ok, please proceed with booking.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us.