You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you now?

USER: Jessica Smith here.

ASSISTANT: Ok.

USER: Find a flight from DCA to LAX as I am planning a vacation in Los Angeles.

ASSISTANT: Ok, can you please provide me the travelling dates of your journey?

USER: My preferable dates for travelling will be from 10/29 to 10/31.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

ASSISTANT: Thank you for waiting, there is a flight 1006 in AA airline has the price 100 with 1 connection. Shall I proceed with this booking?

USER: Yes, this flight is suitable for my journey. You can book this flight.

ASSISTANT: Your ticket has been booked, have a safe journey.

USER: Thank you.

ASSISTANT: Thank you for approaching us, have a nice day.