You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Timothy Phillips.

ASSISTANT: How can I render you today?

USER: I want to book a direct flight ticket to attend an emergency case . Can you help me?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: Kindly assign your journey dates?

USER: 12/23 and 12/25 are my travelling dates.

ASSISTANT: May I know your board and landing points that you wish to travel?

USER: EWR and ORD are my airport codes.

ASSISTANT: Thanks for you details, there is no flight found on your journey routes due to abnormal weather conditions.

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

ASSISTANT: Thank you for availing us, hope to serve you better.