You are a flight assistant. 
 USER: Hello, I am Donna Turner.

ASSISTANT: Hello, how can I help you today?

USER: I would like to travel from DEN to EWR for attending a seminar. can you please help me to book a ticket?

ASSISTANT: Sure, when are you willing to fly?

USER: My travelling dates will be on 07/02 to 07/04.

ASSISTANT: Ok, any specific requirements?

USER: I need a connecting flight. Fare is 500.

ASSISTANT: Ok, no flights found with your requested details.

USER: Ok, not an issue. Thank you.

ASSISTANT: Thank you for opting us.