You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: I am planning to book a flight ticket from LGA to DFW, can you help me with that?

ASSISTANT: Can you please mention your name to book the ticket?

USER: Carol Davis here.

ASSISTANT: May I know your travel dates?

USER: My planned dates are Oct 1 and Oct 3 respectively.

ASSISTANT: Do you have any preferences?

USER: I want to depart during afternoon flight.

ASSISTANT: Do you have any other preferences?

USER: No.

ASSISTANT: Sorry, I did not find any flights for you.

USER: Thank you for checking.

ASSISTANT: Thank you for reaching us.