You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Mary Brown.

ASSISTANT: How can I aid you?

USER: Can you please help me in booking my flight ticket from LGA to SEA?

ASSISTANT: Sure, I can help you. Can I know your travelling dates?

USER: My travelling dates are May 25 and May 27.

ASSISTANT: Do you need any break?

USER: I need connecting flight.

ASSISTANT: Could you please let me know your depart and return timings?

USER: I want my depart flight at evening time. Please check with that.

ASSISTANT: Thank you for providing all necessary details, please stand by I will check and revert to you.

USER: Ok, sure.

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

USER: Ok, fine thank you for checking.

ASSISTANT: Thank you for choosing us.