You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: I am looking to book a flight ticket from DTW to BOS. Can you help me for that?

ASSISTANT: Sure, can you please provide me with your dates of journey?

USER: My travelling dates are Dec 20 and Dec 22.

ASSISTANT: Please let me know your name?

USER: My name is Donna Baker.

ASSISTANT: Are you looking for any other help from my side please?

USER: My depart time is afternoon.

ASSISTANT: Ok, wait for a mean while please.

USER: Make sure that my connection limit should be 1.

ASSISTANT: I found a connecting flight of fare 300 with the Spirit airline, are you ok with this ticket booking?

USER: I have one more specification that is normal cost airline.

ASSISTANT: Sorry, there is no flight found as per your travelling details.

USER: That's ok, thank you for checking.

ASSISTANT: May I know your name please? Thank you.

USER: My name is Donna Baker.

ASSISTANT: Ok, thank you.