You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello, how can I assist you?

USER: My last flight journey made me feel better, so I again prefer to travel through flight. please help me out with booking the ticket.

ASSISTANT: Sure, I am happy to help you. Can you please provide me your travelling  details?

USER: Sure, my origin airport is Houston, TX, - HOU, and my Dest airport is New York ,  NY - JFK.

ASSISTANT: Please provide me  your travelling days?

USER: My journey dates are from 19th Aug to 21st Aug with a price limit of 500 and one connection.

ASSISTANT: OK, may I your good name?

USER: I am William Garcia.

ASSISTANT: OK, please wait I will revert you in a couple of moments.

USER: OK, sure.

ASSISTANT: Thank you for waiting. Sorry, no flights were available on the specified dates you mentioned.

USER: OK, thanks for the response.

ASSISTANT: Thank you for contacting us, have a great day.