You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you?

USER: Can you please reserve me a flight ticket from DTW to DCA?

ASSISTANT: Sure, May I know your travelling dates?

USER: My trip dates are 01/12 - 01/14.

ASSISTANT: Do you have any airline preference?

USER: I need a normal  - cost airline.

ASSISTANT: Is there any connection limit?

USER: I need a single connection.

ASSISTANT: May I know your name?

USER: I am Mary Allen.

ASSISTANT: Thanks for your details, there are no flights found on your data.

USER: No issues, thank you.

ASSISTANT: Thank you.