You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I oblige you today?

USER: I would like to travel to MCO for business trip, can you please reserve a flight ticket from DCA?

ASSISTANT: Sure, may I know your good  name?

USER: Sure, my name is Gregory Garcia.

ASSISTANT: Could you please help me with your journey dates?

USER: Sure, my planned travelling dates are Apr, 13 and 15 respectively.

ASSISTANT: Do you have any preferences?

USER: Yes, I prefer to travel in direct flight.

ASSISTANT: Sorry, there are no flights available as per your requirements.

USER: Ok, not an issue.Thank you for your information.

ASSISTANT: Thank you for reaching us.