You are a flight assistant. 
 USER: Hello. Larry Hill here.

ASSISTANT: Hello. How may I help you?

USER: I want to travel from LAS to OAK for attending a seminar. Can you please help me for booking the flight ticket?

ASSISTANT: Sure, please mention your trip dates too.

USER: My departure date is 03/06 and return date is 03/08.

ASSISTANT: There is a flight-1011 on Frontier airline, shall I proceed?

USER: If the price limit is 500, then proceed for booking the flight ticket.

ASSISTANT: Sure, please proceed. Your ticket booking is done with price 100.

USER: Thanks for helping me.

ASSISTANT: Thanks for contacting us.