You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you now?

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

ASSISTANT: Ok, please mention your trip dates.

USER: I would like to take off on Oct 10 and return on Oct 12.

ASSISTANT: May I know your name?

USER: My name is Linda Campbell.

ASSISTANT: May I know your connection preference?

USER: I am looking for a connecting flight.

ASSISTANT: Do you have any other requirements?

USER: I would like to return during afternoon time.

ASSISTANT: I am very apologetic to inform you this news, but there is no flight available for your journey.

USER: Ok, no issues. Thank you for the information.

ASSISTANT: Thank you for choosing us.

USER: You are welcome.