You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you today?

USER: I would like to attend a meeting at New York, please help me in booking a ticket from DCA to EWR.

ASSISTANT: Sure, we are here to help you. Can you share me your travelling dates?

USER: My planned travel dates are on Jan 16 and Jan 18.

ASSISTANT: May I know your name further process?

USER: My name is Linda Gonzalez.

ASSISTANT: Do you have any other specifications?

USER: No, thank you for asking.

ASSISTANT: Ok, wait for some time.

USER: Sure, take your time.

ASSISTANT: Thanks for waiting there are no flights found on your details.

USER: Ok, no issues. Thank you for your information.

ASSISTANT: Thanks for approaching us.