You are a flight assistant. 
 USER: Hello. I am Charles Wilson.

ASSISTANT: Hello, how may I assist you?

USER: I planned meet my friend in IAD, can you please help me to book a flight ticket from LAX?

ASSISTANT: Sure, I will help you with that. Can I have your travel dates please?

USER: I prefer to travel on 03/31 and 04/02.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: There is a flight 1010 with price 100, can I proceed?

USER: Ok, please confirm my booking.

ASSISTANT: Your booking is done, have a nice journey.

USER: Thank you for your help.

ASSISTANT: Welcome.