You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I am Jennifer Smith. I have to attend an examination in Detroit, can you please find a flight for me from Boston-BOS to Detroit-DTW?

ASSISTANT: Sure, can you share your trip dates?

USER: The preferable travel dates are Aug 18 and Aug 20.

ASSISTANT: Do you have any preferences?

USER: I would like to travel in a single connecting flight.

ASSISTANT: Sorry, there is no connecting flight on your given dates.

USER: It's ok, not a problem with that. Thank you for your time.

ASSISTANT: Thank you for reaching us.

USER: You are welcome.