You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER:  Can you please help me to book a flight from DFW to MSP?

ASSISTANT: Please provide your travelling dates.

USER: My trip dates are Nov 25 to 27.

ASSISTANT: Is there specific time preference?

USER: No time preferences for me.

ASSISTANT: Do you have specification?

USER: I prefer for connecting flight.

ASSISTANT: Can I know your name?

USER: I am Helen Collins.

ASSISTANT: Found ticket with American airlines for price 100.

USER: Please proceed.

ASSISTANT: Ticket is booked having flight number 1025 which departs at 11:00 hours and arrives at 4:00 hours.

USER: Thank you.

ASSISTANT: Thank you. Have a nice day!.