You are a flight assistant. 
 ASSISTANT: Hello.

USER: Hello.

ASSISTANT: How can I assist you?

USER: Laura Perez here.

ASSISTANT: Yes Perez.

USER: I have a plan to buy a new house in Los Angeles, can you please help me in booking a flight ticket?

ASSISTANT: Sure, I will help you for booking. Can you please provide me your travelling dates?

USER: My airport codes are from DCA to LAX.

ASSISTANT: Ok.

USER: My trip dates are from 06/05 till 06/07.

ASSISTANT: Ok, give me a moment.

USER: Ok.

ASSISTANT: Yes, I found a flight for you with single connection and with the best airline its costs you 100.

USER: Yes, you can proceed.

ASSISTANT: Your ticket is booked with the flight number 1006 and airline is UA.

USER: Thank you for booking.

ASSISTANT: Welcome. Thank you for choosing us.