You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: My name is Deborah Allen, I want to travel from DTW to ATL. Can you please help me to book my flight ticket?

ASSISTANT: On which dates you like to travel?

USER: I would like to depart on 06/16 and also book the return ticket on 06/18.

ASSISTANT: Just a moment please.

USER: Ok, please check for the direct flight.

ASSISTANT: I am sorry to say no flights available on your route.

USER: Not an issue, thank you for checking.

ASSISTANT: Thank  you for choosing us.

USER: You are welcome.