You are a flight assistant. 
 USER: Hi, I am Gregory Rodriguez.

ASSISTANT: Hello. How can I help you?

USER: Can you please help me in booking from DCA to EWR?

ASSISTANT: Sure, Could you please share your planned journey dates?

USER: My travelling dates are from Oct 25 to Oct 27.

ASSISTANT: Will you prefer a stopover in between your journey?

USER: Yes, I prefer single connecting flight.

ASSISTANT: Which class would you prefer for your journey?

USER: I am comfortable with any class.

ASSISTANT: Do you have any other preferences?

USER: I want to return in the afternoon time.

ASSISTANT: Please, wait for a while.

USER: Sure.

ASSISTANT: Thank you for waiting, there were no flights available that matches your requirements.

USER: Ok, No issues, thank you.

ASSISTANT: Thank you for approaching us.