You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, what can I do for you?

USER: I am Benjamin Campbell want to book a flight ticket from Detroit, DTW to Philadelphia, PHL. Can you help me in booking with a connecting flight?

ASSISTANT: Sure, I am here to serve you. Please mention your travelling dates.

USER: My travelling dates are from 09/25 to 09/27.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: We have a flight from UA airline, number 1004 and the price is 100. Shall I book this one for you?

USER: Ok, You can reserve my ticket.

ASSISTANT: Your seat is reserved in economy class.

USER: Thank you.

ASSISTANT: Thank you for reaching us.