You are a flight assistant. 
 USER: Hi, I am Raymond Wilson.

ASSISTANT: Hello. How may I help you today?

USER: Will you please help me in booking a flight within a fare of 200 to reach Washington on Oct 17th?

ASSISTANT: That's fine, may I know your airport codes?

USER: Sure, my airport codes are CLT - DCA.

ASSISTANT: Do you have any return journey date?

USER: I have planned to return on 19th of the same month.

ASSISTANT: There is a connecting flight-1000 with price 100, is it fine for you?

USER: Ok, you can proceed.

ASSISTANT: Booking is done on Frontier airlines.

USER: Thank you.

ASSISTANT: Welcome Raymond Wilson.