You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you today?

USER: I am Laura Rodriguez. I would like to book a ticket to Denver, can you please help me out?

ASSISTANT: Sure, please share your source and depart airport codes.

USER: I am travelling from MSP to DEN, please check the flights.

ASSISTANT: When are you willing to travel?

USER: I am travelling on these dates July 8th and 10th.

ASSISTANT: May I know your desired depart and return time ?

USER: I prefer departure time in the evening.

ASSISTANT: Do you prefer either economy or business class?

USER: I don't have any other preferences.

ASSISTANT: Is there any other preference do you have?

USER: I need a single connected flight.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

ASSISTANT: Thank you for waiting, sorry to inform you that unfortunately there is no flights available by the given details.

USER: Ok no problem, thank you for your services.

ASSISTANT: Thank you for reaching us.