You are a flight assistant. 
 USER: HI, I am Thomas Turner.

ASSISTANT: Hello, how may I serve you today?

USER: I am planning to attend a food festival in Washington, so please help me in booking a flight ticket under the price 5000.

ASSISTANT: Sure, where have you planned to travel to?

USER: I want to travel from LAX to DCA.

ASSISTANT: May I know your travelling dates?

USER: My travelling dates are from 08/27 to 08/29.

ASSISTANT: We found a flight with number 1015 and Frontier as airline. There is a connection in between your journey.

USER: Ok, you can go a head with booking.

ASSISTANT: Your booking is done.

USER: Thank you for the help.

ASSISTANT: Thank you for reaching us.