You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: This is Ryan Williams. I want to visit Microsoft Theatre located in Los Angeles, CA - LAX. Can you help me in booking flight ticket?

ASSISTANT: Sure, can I know your travelling dates?

USER: My planned dates are 07/23 - 07/25.

ASSISTANT: Ok, let me know your source airport code?

USER: My airport code is Washington, DC - DCA.

ASSISTANT: We found a flight from AA airline with 1 connection and fare is 200 with economy class. Shall I proceed?

USER: You can reserve it.

ASSISTANT: Your ticket is booked with flight number 1009.

USER: Thank you for booking.

ASSISTANT: Thank you for reaching us.