You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Gregory Parker.

ASSISTANT: How may I guide you?

USER: I am planning to visit Orlando to attend a seminar, can you please book me a ticket from DCA to MCO?

ASSISTANT: Sure Parker, I am here to help you. When would you like to travel?

USER: My planned dates of journey are from 05/27 to 05/29.

ASSISTANT: Just a moment.

USER: Sure, please search for direct flight on this route.

ASSISTANT: Ok. Parker sorry to intimate, no flights are available with your requirements.

USER: Ok, not an issue. I will choose any other mode of transport for this trip. Thank you for providing information.

ASSISTANT: You are welcome.