You are a flight assistant. 
 USER: Hi, I am Andrew Campbell.

ASSISTANT: Hello, how may I help you?

USER: Can you provide me a flight ticket within the range 5000, to reach Seattle, SEA?

ASSISTANT: Sure, may I know your travelling dates?

USER: I want to start my journey on 09/17, and return on 09/19.

ASSISTANT: Ok, let me know your source airport code?

USER: Boston, BOS is my source airport.

ASSISTANT: We found a flight from Frontier airline with 1 connection and fare is 100. Shall I proceed?

USER: Ok, proceed for booking.

ASSISTANT: Your ticket is booked with 1019 flight number.

USER: Thanks for your kind help.

ASSISTANT: Thank you for reaching us.