You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: My name is Paul Green, I want to book a flight ticket from MSP to spend time with my grandmother, can you help me with booking a connecting flight?

ASSISTANT: Sure, can you share your travel dates please?

USER: My travel dates are Jan 03 and Jan 05.

ASSISTANT: Now tell me your destination airport code please?

USER: My destination airport code is ATL.

ASSISTANT: May I know your departure and return time please?

USER: My return time should be morning.

ASSISTANT: Do you have any other preferences?

USER: No.

ASSISTANT: Thanks for waiting. But I am sorry to say that there are no flights available.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you.