You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: Can you please book a ticket from BOS to CLT? As I need to attend a wedding.

ASSISTANT: Sure, I am here to help you. Can you please let me know your travel dates?

USER: Sure, my planned departure and return travel dates are 19th and 21st of April.

ASSISTANT: Ok, please let me know your name.

USER: Sure, my name is Alexander Wilson.

ASSISTANT: Ok, may I know your class preference?

USER: I'm ok with any class.

ASSISTANT: There is a flight with single connection is available in UA airlines and the ticket fare is 200 only. Can I book the ticket for you?

USER: That's fine for me, you can proceed for booking the ticket.

ASSISTANT: Your ticket is booked in economy class and your flight number is 1023.

USER: Thank you so much for your help.

ASSISTANT: You are welcome and thank you for choosing us.