You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, what can I do for you?

USER: I am Susan Davis. Can you please help me in booking a flight ticket from SFO to CLT?

ASSISTANT: Sure, we are ecstatic to help you.

USER: Thank you.

ASSISTANT: When are you planning to make your journey possible?

USER: I am planning to depart on May 14 and return on May 16.

ASSISTANT: Do you need a break in the middle of your way?

USER: Yes, I need a stopover.

ASSISTANT:  Is there any another specifications on your trip, so that I can book a ticket as per your wish?

USER: My depart time should be afternoon.

ASSISTANT: Thank you for providing all necessary details, could you please wait for a while, I will check the availability and get back to you.

USER: Sure, I will wait.

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, no problem. Thank you for the information.

ASSISTANT: Thank you for choosing us.