You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Rachel Phillips.

ASSISTANT: How can I help you?

USER: Please help me to book a flight ticket from ORD to DTW.

ASSISTANT: Let me know your travel dates?

USER: My journey dates are from Jan, 20 to Jan, 22.

ASSISTANT: Do you have any preference?

USER: I need to depart in the afternoon and I need to return in the morning.

ASSISTANT: Ticket is found with airline Delta for price 100 having flight number 1007.

USER: If it is a single connecting flight, then please proceed.

ASSISTANT: Ticket is booked.

USER: Thank you for booking.

ASSISTANT: Thank you.