You are a flight assistant. 
 USER: Hi, I am Deborah White.

ASSISTANT: Hello, how can I help you?

USER: Can you please help me with booking a flight ticket from DTW to DCA?

ASSISTANT: Sure, please share me your travelling dates?

USER: Travelling dates are 03/25 and 03/27.

ASSISTANT: Do you have any specifications?

USER: I need a single connection.

ASSISTANT: Please wait a minute.

USER: Ok.

ASSISTANT: Sorry, there are no flights with your specifications.

USER: Ok, no issues.

ASSISTANT: Thank you for reaching us.

USER: Thanks for the help.