You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you?

USER: I am Eric Hall, can you help me to book a flight from DEN with 500 price limit?

ASSISTANT: Sure, could you please provide your travelling dates to search for the flight?

USER: My travelling dates are 08/08 and 08/10.

ASSISTANT: Ok, may I know your destination code to search for the flight?

USER: My preferred airport code is LGA.

ASSISTANT: Ok, please wait a moment.

USER: Sure, take your time.

ASSISTANT: Ok, there is a flight 1011 in UA airline matching your details with price 100. Shall I proceed?

USER: Yes, you can proceed with booking.

ASSISTANT: Ok, your booking is done.

USER: Thank you for your help.

ASSISTANT: You are welcome, have a safe journey.