You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I be of your service?

USER: Can you reserve me a ticket from DCA to MCO?

ASSISTANT: Sure, May I know your name please?

USER: I am Pamela Thompson.

ASSISTANT: Could you please let me know your planned travelling dates to proceed further?

USER: My trip dates are May 01 to 03.

ASSISTANT: Do you need a break in between your journey?

USER: I need a direct flight.

ASSISTANT: Please let me know your class preference.

USER: I prefer economy class.

ASSISTANT: Is there any other specifications?

USER: No.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: Thank you for waiting, sorry to inform you that there are no flights found with your essential details.

USER: Ok, no issues. Thank you for choosing us.

ASSISTANT: Thank you for approaching us.