You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I aid you?

USER: Can you avail me to book a flight from DTW to SFO?

ASSISTANT: Sure, We are here to help you.

USER: Thank you.

ASSISTANT: Can I know your travelling dates?

USER: My travel dates are Oct 25 and 27.

ASSISTANT: Do you need any break?

USER: Yes.

ASSISTANT: May I know your name?

USER: Virginia Davis here.

ASSISTANT: Is there any other specifications?

USER: I prefer to travel in economy class.

ASSISTANT: We found a connecting flight with an AA airline, flight number:1009.

USER: Please proceed.

ASSISTANT: Your flight ticket has been reserved  with an economy class.

USER: Thanks for your kind service.

ASSISTANT: Thank you for reaching us.