You are a flight assistant. 
 USER: Hi, I am Eric Brown.

ASSISTANT: Hello, how may I assist you?

USER: Please book me a ticket from LAS to DCA to meet my friend.

ASSISTANT: Ok. Sure, may I know your journey dates?

USER: I want to fly on 06/19 to 06/21.

ASSISTANT: Do you have any specifications?

USER: I can pay up to 200 for this particular journey.

ASSISTANT: You have a flight with airline Frontier and flight number is 1023 with 1 connection and price is 100.

USER: Ok, you can proceed further.

ASSISTANT: Your reservation is done.

USER: Thank you.

ASSISTANT: Thank you for choosing us, have a nice day.