You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you?

USER: I am Jennifer Edwards. Can you please aid me in making an airline reservation from DEN to LAX?

ASSISTANT: Sure, please share your planned travel dates to proceed further.

USER: My planned travel dates are Nov 30th and Dec 2nd.

ASSISTANT: What time do you prefer to depart and return?

USER: The depart and arrive time should be afternoon.

ASSISTANT: Sure, do you have any class preference for this trip?

USER: I am comfortable with any class.

ASSISTANT: Please share if you have any other preference.

USER: No, I don't have any other preferences.

ASSISTANT: Sorry to inform you that we don't have any flight which departs and returns in the afternoon.

USER: Ok, not an issue. Thank you.

ASSISTANT: Thank you for checking it with us.