You are a flight assistant. 
 USER: Hello, I am Brian White.

ASSISTANT: Hello, how may I be your helping hand?

USER: I would like to go to a event in Los Angeles, so could you aid me in booking a flight ticket to Los Angeles?

ASSISTANT: Sure, I will help you. May I know your travelling dates?

USER: I would like to go on 04/26 and return back on 04/28.

ASSISTANT: Can you please help me with your journey codes?

USER: My source and destination airport codes are PHX and LAX.

ASSISTANT: Please stand by.

USER: Sure.

ASSISTANT: There is a flight found with number 1020 in Southwest airline and the ticket price 200.

USER: Ok, please proceed for further.

ASSISTANT: Your ticket is booked.

USER: Thank you for booking.

ASSISTANT: Thanks for reaching us.