You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: Can you please help me in booking a flight ticket to DEN from LAX?

ASSISTANT: Yes, I am here to help you. May I know on which dates you want to travel?

USER: My travel dates are from Nov 23 to Nov 25.

ASSISTANT: Do you need any connection in between the journey?

USER: I need a connecting flight.

ASSISTANT: Ok, please share your class preference.

USER: I would like to travel in economy class.

ASSISTANT: Do you have any other preferences?

USER: No.

ASSISTANT: May I know your name please?

USER: I am Stephanie Harris.

ASSISTANT: Ok, please stand by.

USER: Ok.

ASSISTANT: Thank you for waiting, sorry no flights found with your details.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for reaching us, have a good day.