You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I be at your assistance?

USER: Can you pleas help me in booking a flight ticket to BOS from SEA?

ASSISTANT: Sure, please let me know your airline preference.

USER: I need a normal cost airline.

ASSISTANT: On what dates will you be travelling?

USER: My travel dates are from Jan 07 to Jan 09.

ASSISTANT: How many connections do you need?

USER: I need a single connecting flight.

ASSISTANT: Is there any time restriction?

USER: No.

ASSISTANT: On what name you want the ticket to be reserved?

USER: Please reserve on the name of Carolyn Green.

ASSISTANT: Ok Carolyn Green, there is a Delta airline with flight number 1018 is available for you on the dates you requested and the airfare is 200. Is that fine?

USER: Yes, you can proceed.

ASSISTANT: Your reservation has been done.

USER: Thank you.

ASSISTANT: Thank you for picking us.