You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you?

USER: I am Kathleen Collins. Can you please book a ticket for me as I am planning to go for vacation at Los Angeles, LAX?

ASSISTANT: Sure, help me with the trip dates?

USER: Trip dates are 04/04 to 04/06.

ASSISTANT: May I know your source code?

USER: Source code is Washington, IAD.

ASSISTANT: Thank you for your details, we found a flight in an airline Southwest with 1022 number having a single connection price of 100. Shall I reserve?

USER: You can proceed.

ASSISTANT: Your flight ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you for reaching us.