You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you at this moment?

USER: I am Karen Walker from San Francisco.

ASSISTANT: What service that you are seeking from our agency?

USER: I want to go Detroit next week, can you please book a flight ticket for me?

ASSISTANT: Sure, I will help you.

USER: Thank you.

ASSISTANT: Can you please provide your planned dates of travelling?

USER: I want to take off on 10/09 and book my return ticket also 10/11.

ASSISTANT: Ok, may I know your origin and destination airport codes for booking?

USER: I want to fly from SFO and destination airport is DTW.

ASSISTANT: Please wait a moment to check the flights.

USER: Ok.

ASSISTANT: Based on your information, I have found flight with 1 connection with the fare of 100. Is it ok for you?

USER: Please book this flight ticket for me.

ASSISTANT: Ok, your ticket has been booked in flight number 1011.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us, have a great day.