You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I am Elizabeth Phillips. I have a plan to attend brother's marriage in Charlotte NC-CLT, could you please aid me in booking a flight ticket from Boston MA-BOS?

ASSISTANT: Sure, may I know your travel dates?

USER: My travel dates are 06/21 and 06/23.

ASSISTANT: How much you can afford for this ticket?

USER: I can afford upto 200.

ASSISTANT: We found a flight on your details with airline UA, flight number: 1013. Shall I book this ticket?

USER: Please reserve it.

ASSISTANT: Your ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you.