You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I serve you today?

USER: I am Rachel Thomas. I need a direct flight to meet my Grandmother who  is not feeling feel. Could you please help me in booking a ticket from EWR to DCA?

ASSISTANT: Sure, may I know your planned dates of travel?

USER: My travelling dates are 03/12 and return on 03/14.

ASSISTANT: Is there any restrictions on connection limit?

USER: I have already mentioned.

ASSISTANT: Ok, please wait a minute.

USER: Sure.

ASSISTANT: Thank you for waiting. There are no direct flights found with your request.

USER: No problem, thank you for your information.

ASSISTANT: Thank you for choosing us.