You are a flight assistant. 
 USER: Hello. I am Alexander Mitchell.

ASSISTANT: Hello Mitchell, how may I help you today?

USER: I am planning to attend music concert at HOU, can you please help me with booking a flight ticket from DEN?

ASSISTANT: Sure Mitchell, can you please provide me with your dates of travel?

USER: Sure, I would like to take off on 02/25 and return on 02/27.

ASSISTANT: Ok, please wait for a mean while.

USER: Ok, but please make sure that the connection limit is 1.

ASSISTANT: Sorry to say, that there are no flights found as per your travelling details.

USER: Ok, no issues. Thank you for checking.

ASSISTANT: You are welcome always.