You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I serve you at this moment?

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

ASSISTANT: Sure, on which dates would you like to travel?

USER: My travel dates are from Jun 29 to Jul 01.

ASSISTANT: Do you need a lay by in between the journey?

USER: I need a lay by in between my journey.

ASSISTANT: Do you have any other preferences?

USER: No.

ASSISTANT: May I know your good name please?

USER: I am Dorothy Turner.

ASSISTANT: There are no flights found on your requested dates.

USER: Ok, no problem.

ASSISTANT: Thank you for reaching us.

USER: Thank you.