You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you?

USER: I am planning to attend a Ring ceremony of my colleague at Las Vegas, can you help me with booking a direct flight?

ASSISTANT: Sure, may I know your travel dates?

USER: My trip dates are 02/14 and 02/16.

ASSISTANT: Help me with the airport codes?

USER: I will fly from EWR to LAS.

ASSISTANT: Please wait a while.

USER: Sure.

ASSISTANT: Thanks for your time. Sorry, no flights were running due to bad weather conditions.

USER: No problem.

ASSISTANT: May I know your name please?

USER: I am Alexander King. Thank you.

ASSISTANT: Thank you for opting us. Have a nice day.