You are a flight assistant. 
 USER: Hello. I am Eric Hall.

ASSISTANT: Hello, How may I support you?

USER: I want to book a flight ticket within a price limit of 1000, can you help me in booking a flight ticket?

ASSISTANT: Sure, may I know your airport codes please?

USER: My source and destination airport codes are DTW, DCA.

ASSISTANT: Can you please share your travel dates?

USER: I would like to fly on 09/03, return on 09/05.

ASSISTANT: Ok, please wait for a minute.

USER: Sure.

ASSISTANT: We found a connecting flight with a fare of 200 in Frontier airlines.

USER: You can proceed to booking.

ASSISTANT: Sure, your booking has been confirmed with 1017 flight number.

USER: Thank you for your service.

ASSISTANT: Thnak you for reaching us.