You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: As I am a singer, I want to participate in Music festival at DFW. Can you please book a ticket from IAD?

ASSISTANT: It's my pleasure to help you. May I know your planned trip dates?

USER: My travelling dates are July 29 and July 31.

ASSISTANT: Do you have any connection limit preference?

USER: I would like to travel in single connected flight.

ASSISTANT: Could you help me with your name please?

USER: Sure, I am Kimberly Carter.

ASSISTANT: Sorry, for the inconvenience there is no flight available for the given dates.

USER: Ok, no issues. Thank you.

ASSISTANT: Thank you for reaching us.