You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: Can you help me in doing a reservation from LGA to ORD?

ASSISTANT: Please let me know your travelling dates?

USER: My trip dates are Dec 25 to 27.

ASSISTANT: Is there any connection preference?

USER: I need a connecting flight.

ASSISTANT: Can I know your name?

USER: I am Deborah Hill.

ASSISTANT: Sorry, there is no flight with your travelling dates.

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

ASSISTANT: Thank you.