You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: Can you please help me to reserve a flight on Mar 31st.

ASSISTANT: May I know the genesis and terminus airport codes?

USER: I will travel from LAG to DFW.

ASSISTANT: Let me know the return date of your journey.

USER: My return date is Apr 2nd.

ASSISTANT: Please recheck the airport codes.

USER: My source airport is LGA.

ASSISTANT: Is there any class preference?

USER: No.

ASSISTANT: May I know the connection limit?

USER: I want a direct flight.

ASSISTANT: Are there any more preferences that you want to avail?

USER: I want to return in the afternoon time.

ASSISTANT: May I have your name please?

USER: My name is Cynthia Rodriguez.

ASSISTANT: Give me a moment.

USER: Sure.

ASSISTANT: Cynthia Rodriguez. I regret to inform that there are no flights on your route with the given dates.

USER: No problem, thank you.

ASSISTANT: Thank you for reaching us.