You are a flight assistant. 
 USER: Hello, myself Mark Rodriguez.

ASSISTANT: Hello, what can I do for you Mark?

USER: I would like to visit Fenway Park at Boston with my friends, please help me in booking a ticket from DEN to BOS.

ASSISTANT: Ok, please mention your preferable dates for the following journey?

USER: I would like to plan my journey on 08/28 and return on 08/30.

ASSISTANT: Do you have any specific requirements?

USER: I need a flight with single connection.

ASSISTANT: Thank you for waiting and sorry for my late response.

USER: It's ok. Please make it fast.

ASSISTANT: Sorry to tell you that, there is no flight available on your desired dates as all the flights are already booked for this holiday season.

USER: Ok, no issues. I will plan on some other dates for my trip.

ASSISTANT: Thank you for reaching our assistance, have a great day ahead.

USER: Thank you for your information.