You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you today?

USER: I am William Hall from San Francisco. Could you please help me in flight ticket booking process from SFO to DTW?

ASSISTANT: Sure, I am here to help you with that. Can I know your planned trip dates?

USER: Thank you for your response, I want to take off on Nov 14 and please confirm my return ticket also on Nov 16.

ASSISTANT: Do you have any other specifications?

USER: Yes, my budget limit is 200 so please check with this.

ASSISTANT: The AA airlines are providing a flight having a connection limit 1 and the ticket fare 900. Can I proceed with the booking?

USER: Please don't book this flight ticket for me, I already mentioned my budget limit is 200 so please check with this.

ASSISTANT: Sorry to say that, there are no flight's available based on your ticket fare.

USER: Oh! It's ok no problem. Thank you for your service.

ASSISTANT: Thank you for your reaching us.