You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I'm Nicholas Perez.

ASSISTANT: How can I assist you at this moment?

USER: I am planning to attend music concert at LAS, can you please help me with booking a flight ticket from CLT?

ASSISTANT: Sure, I am happy to help you with that. Can I have your travel dates please?

USER: Sure, I would like to take off on 05/21 and return back on 05/23.

ASSISTANT: Ok Perez, please wait a moment to check flight availability.

USER: Ok, but please make sure that the price limit does not exceed 200.

ASSISTANT: Do you have any limits regarding connections?

USER: I need a flight with 1 connection.

ASSISTANT: I have found a flight with connection 1 and price of the ticket is 100. Shall I proceed with booking?

USER: Yes, please proceed with the booking.

ASSISTANT: Ok Nicholas Perez, your ticket booking has done and flight number is 1011.

USER: I appreciate your help, thank you.

ASSISTANT: Thank you for choosing us, have a great journey.

USER: You are welcome.