You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you today?

USER: Can you please help me to book flight ticket from MCO to IAH?

ASSISTANT: Sure, please share me your journey dates.

USER: My trip dates are July 23 and July 25.

ASSISTANT: Please share me your specifications.

USER: I prefer a connecting flight.

ASSISTANT: For booking, we need your good name. Please mention it.

USER: Myself David Lewis.

ASSISTANT:  We are unable to provide flight in between your journey routes due to some technical up-gradation at destination airport.

USER: It's ok, thank you.

ASSISTANT: Thank you for opting us.