You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: I would have loved to attend. I would have loved to attend my cousin birthday party.

ASSISTANT: Ok.

USER: Could you please help me to book a ticket?

ASSISTANT: Sure.

USER: I would like to travel to CA - LAX from DC - DCA.

ASSISTANT: Let me know your date of journey.

USER: My travelling dates will be on 08/18 to 08/20.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Mean while, may I know your name?

USER: My name is Brian Harris.

ASSISTANT: Thanks for your time. You have UA airline with flight number 1011 of price 100 with 1 connection.

USER: You can proceed with the booking.

ASSISTANT: Ok, your ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you for reaching us.