You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I'm Kevin Williams.

ASSISTANT: How may I help you today?

USER: I am planning to attend music concert at IAD, can you please help me with booking a flight ticket from LAX?

ASSISTANT: Ok, can you please share your travelling dates?

USER: Sure, I would like to take off on 07/09 and return back on 07/11.

ASSISTANT: There is a flight available for you by Southwest airlines with 1 connection with the price of 100, can I book it?

USER: Yes, please proceed with the booking.

ASSISTANT: Your ticket is reserved.

USER: I appreciate your help, thank you.

ASSISTANT: Thank you for choosing us.

USER: You are welcome.