You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, How can I succour you?

USER:  I would like to return from Los Angeles CA-LAX after finishing off my  research on rare birds . Can you help me to book a flight ticket from NY-EWR?

ASSISTANT: Sure, we are happy to help you. Let me know if you prefer a halt within your journey?

USER: I need a break in my journey.

ASSISTANT: Could you please share when do you plan to travel?

USER: 12/26 will be my depart date.

ASSISTANT: May I know your planned return date from Los Angeles?

USER: On 12/29 I would like to return.

ASSISTANT: Please provide your good name to proceed further.

USER: Jennifer Lee here.

ASSISTANT: Thank you for providing your details. Give me sometime to check and get back to you.

USER: Ok.

ASSISTANT: Thanks for waiting. Unfortunately, there is no flight available according to your specifications due to terminal up-gradation going on at your destination airport.

USER: No issue, I will choose another alternative. Thank you for your information.

ASSISTANT: Ok, thank you for being with us and have a great day.