You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you now?

USER: I need to modify my reservation as my destination got changed to MSP. Can you help me with that?

ASSISTANT: Ok, may I know your name.

USER: Sure, my name is George Hernandez.

ASSISTANT: I found your reservation, may I know your new airport codes?

USER: My airport codes are HOU and MSP.

ASSISTANT: When are you planning to travel?

USER: I have planned to travel from Sep 18 to Sep 20.

ASSISTANT: Do you need a connecting flight?

USER: I need a connecting flight.

ASSISTANT: May I know your other preferences?

USER: I need a flight which returns in the morning.

ASSISTANT: Flight - 1024 is available for you with 1 connection. Can I book it for you?

USER: Yes, go ahead with the booking.

ASSISTANT: Sorry to say, there are no flights available for you for return in morning.

USER: Thank you for your kind service.

ASSISTANT: Thank you for choosing us.