You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello,. How can I help you today?

USER: I would like to book a flight ticket from DEN to SEA for attending a live concert . Could you please help me help me with booking a flight ticket?

ASSISTANT: Sure, please share your planned travel dates?

USER: My travelling dates are June 30 and July 2.

ASSISTANT: Do you have any connection limit?

USER: Yes, I prefer to travel in a connecting flight.

ASSISTANT: Any other preferences?

USER: Yes, I prefer to travel in a economy class.

ASSISTANT: Can I have your name please?

USER: I am George Lopez.

ASSISTANT: Sorry, no flights found with your given details.

USER: No worries, thank you for the information.

ASSISTANT: Thank you for opting us.