You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: Patricia Jones here. Can you please help me in booking a flight ticket from MSP to IAH?

ASSISTANT: Sure, please share your planned travel dates.

USER: Sure, my travel dates are from Mar 28 to Mar 30.

ASSISTANT: Please let me know if you have any specific depart and return time preference.

USER: I would like to return in the afternoon.

ASSISTANT: Which class do you prefer to travel?

USER: I am comfortable with any class.

ASSISTANT: Please let me know if you have any other preference.

USER: I need a connecting flight.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Sorry we didn't find a flight for your given trip details.

USER: Ok, no issues. Thank you for the information.

ASSISTANT: Thank you.