You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: Eric Parker here.

ASSISTANT: Good evening Eric.

USER: I am looking for a flight ticket with price below 1000. Can you book it?

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

USER: Ok. My airport codes for boarding the flight are EWR to CLT.

ASSISTANT: Please let me know your journey dates for better search.

USER: My travelling dates for journey are 04/14 to 04/16.

ASSISTANT: Eric, I found a flight in Spirit airlines with price 100. Can I book the ticket for you?

USER: Sure, you can book the flight ticket.

ASSISTANT: Your ticket is confirmed and the flight number is 1011.

USER: Thank you.

ASSISTANT: Thank you for choosing us.