You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you?

USER: I need a flight ticket booking from IAH to HOU to meet my friend, can you help me with booking?

ASSISTANT: Sure, may I know your planned travel dates please?

USER: Thank you and my travel dates are 16 to 18 in the month of June.

ASSISTANT: Would you like travel in a connecting flight or a direct flight?

USER: I would like to travel in a single stop flight.

ASSISTANT: May I know your good name please?

USER: Sure, my name is Shirley Moore.

ASSISTANT: Sorry, there is no flight available on your requested dates.

USER: Ok, I can prefer any other source. Thank you for your help.

ASSISTANT: Thank you for reaching us.