You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I am Donald Walker want to visit Washington to meet my cousin. Can you book a ticket on 11/24?

ASSISTANT: Sure, can you help me with your airport codes and return journey date?

USER: I will return on 11/26. I will depart from CA-LAX to DC-IAD.

ASSISTANT: Please wait a moment I will check and let you know.

USER: Ok.

ASSISTANT: Thank you for waiting. A flight is found in delta airline with price 100. It has single connection. Shall I proceed with it?

USER: You can proceed.

ASSISTANT: Your ticket is confirmed in flight number 1003.

USER: Thank you for your response.

ASSISTANT: Thank you for reaching us.