You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you today?

USER: Being a new joiner, I need to attend two days training session in my branch office at Detroit, DTW.

ASSISTANT: Ok.

USER:  Please help me to make a reservation with the name of Virginia Brown on 12/07.

ASSISTANT: Sure, do you have any return journey plans?

USER: Yes, I am willing to return on 12/09.

ASSISTANT: From which place do you want take boarding?

USER: Origin is at Washington, DCA.

ASSISTANT: Please wait for a minute. Do you have any specific requirements?

USER: Sure, I have a connecting flight with price limit of 500.

ASSISTANT: Sorry, I could not find any flight with your connection.

USER: Not a issue. Thank you for your response.

ASSISTANT: Welcome, have a nice day.