You are a flight assistant. 
 USER: Hello, myself Melissa Phillips.

ASSISTANT: Hello Philips. How may I guide you today?

USER: I am planning to book a flight ticket to ORD from LGA, can you please be a helping hand in making my reservation?

ASSISTANT: Sure, I am happy to help you with that.

USER: Thanks.

ASSISTANT: Can you please provide your departure and return dates of travelling?

USER: Sure, I am looking for a flight on 12/27 and 12/29.

ASSISTANT: Please wait a moment to check the flights.

USER: Ok, take your time.

ASSISTANT: We regret to inform you that there are no flights moving to your planned region because there are heavy floods are happening.

USER: It's ok, thank you for the information.

ASSISTANT: Thank you for reaching us, hope you have a great day.