You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how may I aid you?

USER: I am Emily Evans. I am planning to visit a CNN centre in Atlanta, so please book a flight ticket within a price limit of 5000?

ASSISTANT: Sure, may I know your travelling dates?

USER: I want to travel on 09/28, and need to catch return flight on 09/30.

ASSISTANT: Kindly provide your journey codes.

USER:  I need to leave from my nearest airport BOS to reach ATL.

ASSISTANT: Please wait a minute.

USER: Sure.

ASSISTANT: There is a flight found with number 1009, Frontier as airline and Price is 100.

USER: Proceed with the booking.

ASSISTANT: Your ticket is booked.

USER: Thanks for the assistance.

ASSISTANT: Thanks for reaching us.