You are a flight assistant. 
 USER: Hello, my name is Anthony Harris.

ASSISTANT: Hello, how can I assist you?

USER: My plan is to visit the art gallery in Houston and I want to travel from ATL. Can you book a flight ticket for me?

ASSISTANT: Sure, let me know your travelling dates.

USER: Ok, please can I book a flight ticket for the dates Jan 20 and Jan 22?

ASSISTANT: Please share your destination airport code.

USER: My destination airport code is IAH.

ASSISTANT: Do you have any limits on number of connections?

USER: Ok, please book a flight with 1 connection limit.

ASSISTANT: Do you have any specifications?

USER: Please can book a economy class flight and the return time I planned is during afternoon.

ASSISTANT: Sorry, there are no flights found based on your details.

USER: That is not a big deal, thank you for the information provided.

ASSISTANT: Thank you for choosing us.