You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Kenneth Lewis here.Is this Austin airlines?

ASSISTANT: Yes Lewis, how may I help you today?

USER: I have a Chess competition in Houston.Can you please help me for booking a ticket?

ASSISTANT: Sure, may I know your travel airport codes for booking?

USER: My airport codes are from MA-BOS to TX-HOU.

ASSISTANT: Could please help me with your preferable dates to proceed further?

USER: My departure date is 09/23 and return date is 09/25. Make sure my connections limit is 1.

ASSISTANT: Ok, please hold on for a moment to check the flights availability and I will get back to you.

USER: Ok.

ASSISTANT: Sorry Lewis, there is no flight found with your requested dates of travelling.

USER: Ok, thank you for the information.

ASSISTANT: Ok, thank you for approaching us, have a nice day.