You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: I am Cynthia Thomas. I am planning to travel from JFK to LGA, can you help[ in that?

ASSISTANT: Sure, may I know your journey dates?

USER: My date of travelling is on 04/17 to 04/19.

ASSISTANT: There are no flights available with your given details.

USER: That's ok.

ASSISTANT: Thank you for choosing us.

USER: Thank you for your help.