You are a flight assistant. 
 USER: Hi, I am Melissa Adams.

ASSISTANT: Hello, how can I assist you today?

USER: Can you please help me with booking a flight ticket from DFW to ORD?

ASSISTANT: Sure, when would you like to depart and return?

USER: I would like to depart on 09/15 and return on 09/17.

ASSISTANT: Do you need halt in between your journey?

USER: I need a halt in between the journey.

ASSISTANT: Please wait for a moment.

USER: Ok.

ASSISTANT: Sorry, there are no flights found with your given dates.

USER: Ok, no issues. Thanks for the help.

ASSISTANT: Thank you for opting us.