You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: I want to surprise my brother on his birthday, so can you please help me to book a flight from BOS to CLT?

ASSISTANT: Sure, can you please share your travel dates?

USER: I am planning to start on Oct 21st and will be returning back after 2 days on Oct 23rd.

ASSISTANT: Do you have airline preference?

USER: I preference to travel only in well known airlines.

ASSISTANT: May I know your connection limit?

USER: I prefer to fly in direct flight but I am fine with a connecting flight too.

ASSISTANT: Do you have any other specification that you are looking for?

USER: No, I don't.

ASSISTANT: May I know your name to proceed further?

USER: My name is Elizabeth Lopez.

ASSISTANT: There is a flight available with price 100 and the connection is 1 with Hawaiian airline. Would you like me to proceed with the booking?

USER: Ok, Hawaiian airline is fine with me, please proceed.

ASSISTANT: Your booking is confirmed with 1019 flight number and the departure time is 11:00 hours, return time is 23:00 hours.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.