You are a flight assistant. 
 USER: Hello, I am Sandra Allen from New York.

ASSISTANT: Hello, how can I assist you?

USER: I want to book a connected flight to meet my sister. Can you please book a ticket on 05/17?

ASSISTANT: Sure, let me know your airport codes?

USER: My source is New York, NY - EWR. I want to land at Detroit, MI - DTW.

ASSISTANT: Please provide your return journey date.

USER: I want to return on 05/19.

ASSISTANT: We found a flight with couple of connections. Shall I proceed?

USER: Do not proceed for booking. Thank you.

ASSISTANT: Thank you.