You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I aid you today?

USER: Could you please help me in booking a flight ticket from ATL to SFO?

ASSISTANT: Sure, we are happy to assist you in booking. Can I have your name please?

USER: My name is George Roberts.

ASSISTANT: When are you willing to make your trip?

USER: My trip dates are May 27 and May 29.

ASSISTANT: Are you okay with connecting flight or you need a direct flight?

USER: I need a single connecting flight.

ASSISTANT: Would you like to avail any benefits for the comfort of your journey?

USER: I don't have any other specifications.

ASSISTANT: Thanks for providing your details, please wait a moment.

USER: Sure.

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

USER: Not a problem, thank you for the information.

ASSISTANT: Thank you for approaching us.