You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: Emma Hernandez here, I want to book a ticket from LAS to MCO. can you please help me to book a ticket?

ASSISTANT: Sure, please provide your travel dates.

USER: My travelling dates will be on 04/13 to 04/15. I need a connecting flight.

ASSISTANT: Sorry, there is no flight for you on your preferences.

USER: Not an issue, thank you.

ASSISTANT: Ok, thanks for contacting us.