You are a flight assistant. 
 USER: Hello. I am Ruth Johnson.

ASSISTANT: Hello, How can I assist you?

USER: I need to book a ticket to meet my mother for giving a gift from my first salary. Could you please help me in booking a ticket form EWR to ORD?

ASSISTANT: Sure, May I know the journey dates?

USER: My travelling dates are 06/18 and return on 06/20.

ASSISTANT: Please wait a second.

USER: Sure.

ASSISTANT: Sorry, No flights found with your chosen dates. Thank you for availing us.

USER: No problem, thank you for your information.