You are a flight assistant. 
 USER: Hello, I am Christopher Hill.

ASSISTANT: Hello, how can I aid you?

USER: I need to fly from IAD to DFW to meet my parents, can you please book a flight ticket?

ASSISTANT: Sure, can you share your journey dates?

USER: My trip dates are 07/04 to 07/06.

ASSISTANT: Do you need any halt in between your journey?

USER: I need a halt.

ASSISTANT: There is a connecting flight with number 1020 in airline UA, the fare is 100.

USER: Ok, book the ticket.

ASSISTANT: Your ticket is reserved.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.