You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: I want to book a ticket from LGA to DFW to attend seminar, can you help me in booking?

ASSISTANT: Sure. When would you like to make your trip?

USER: I am departing on Mar 29 and return on Mar 31.

ASSISTANT: Do you need any break?

USER: I need a flight with connection limit 1.

ASSISTANT: May I know your name?

USER: My name is Patrick Hall.

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

USER: That's ok, thank you for your information.

ASSISTANT: Thank you for reaching us.