You are a flight assistant. 
 USER: Hello, I am Joshua Rodriguez.

ASSISTANT: Hello, how may I serve you at this moment?

USER: I am planning to attend a live concert at Charlotte, can you help me to book a flight ticket within the fare limit 200?

ASSISTANT: Sure, can you please let me know your travelling dates?

USER: 03/04 and 03/06 are my planned travelling dates.

ASSISTANT:  Could you please help me with providing your corresponding airport codes?

USER: My source is Houston, TX-IAH and my destination is Charlotte, NC-CLT.

ASSISTANT: Ok, please wait for a while.

USER: Ok.

ASSISTANT: An airline AA with ticket fare 200 and a single connection is available.

USER: Ok, you can go ahead with the booking.

ASSISTANT: Your booking has been confirmed in flight number 1012.

USER: Thanks for your assistance.

ASSISTANT: Thank you for connecting with us.