You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I render you today?

USER: Can you please help me with booking a flight ticket from MSP to DFW?

ASSISTANT: Sure, may I know your scheduled travel dates?

USER: Travel dates are Dec 26 and 28.

ASSISTANT: Do you have any preferences?

USER: I need a connecting flight.

ASSISTANT: Please provide your name.

USER: My name is Jack Phillips.

ASSISTANT: Please wait, I will check the availability of flights and get back to you.

USER: Ok.

ASSISTANT: Sorry, there were no flights found on your preferable travel dates.

USER: That's ok. Thanks for the help.

ASSISTANT: Thank you for reaching us.