You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you today?

USER: As my plan to spent some quality time with my grand parents at Detroit, can you help me to book a flight ticket with in the fare limit 1000?

ASSISTANT: Sure, can you please help me with your travelling dates?

USER: 11/28 and 11/30 are my planned travelling dates.

ASSISTANT: Please help me with your airport codes?

USER: I want to start from San Francisco, CA-SFO to reach Detroit, MI-DTW.

ASSISTANT: Please wait for a while, I will check and get back to you.

USER: Ok, make sure that I need a connecting flight.

ASSISTANT: There is a flight with Delta airlines, flight number is 1020 with one connection and price is 100. Shall I proceed?

USER: Ok, you can book the ticket with the name Ashley Wright.

ASSISTANT: For further proceeding may I know your good name please? Ok, your ticket has been booked.

USER: Thanks for your kind support.

ASSISTANT: Thanks for choosing us.