You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Donna Lewis.

ASSISTANT: Donna, how can I assist you?

USER: I would like to meet my sister at Orlando, will you help me in booking the flight ticket from HOU to MCO?

ASSISTANT: Sure, please provide your trip dates.

USER: My travelling dates are 07/14 and 07/16.

ASSISTANT: Please wait for a while.

USER: Ok, I will wait for your response.

ASSISTANT: Do you have any specifications?

USER: I need a flight with single connection.

ASSISTANT: Let me check.

USER: Ok.

ASSISTANT: Sorry, no connecting flight is available on your route.

USER: Ok, not an issue. Thank you for your information.

ASSISTANT: Thank you for contacting us.