You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you today?

USER: I would like to meet my cousin at Detroit, please help me in booking a ticket from IAD to DTW.

ASSISTANT: Please share your travelling dates.

USER: My planned travel dates are on Oct 03 and Oct 05.

ASSISTANT: Do you need any connection limit?

USER: I need a direct flight.

ASSISTANT: Do you have any other specifications?

USER: No more specifications.

ASSISTANT: May I know your name for reservation?

USER: My name is Dennis Hernandez.

ASSISTANT: There are no flights available on your required dates.

USER: Ok, no issues. Thank you for your information.

ASSISTANT: Thank you for choosing us.