You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. Good evening.

USER: I am Alexander Williams.

ASSISTANT: How can I assist you Alexander?

USER: Please help me to book a ticket from CLT to DTW.As I am reporter, I need to attend a conference.

ASSISTANT: Good to hear that. May I know when would you like to travel?

USER: I want to travel on 10/20 and 10/22.

ASSISTANT: Alexander, there is a flight available for you with AA airlines and the price is 200. Shall I proceed?

USER: Fine, please proceed.

ASSISTANT: Your ticket is booked with name Alexander Williams. The flight number is 1019.

USER: Thank you for booking.

ASSISTANT: Thank you for utilising our services.