You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you today?

USER: Myself Edward Anderson. I need to meet my colleague at LAS, can you please help me to book a flight ticket from LGA?

ASSISTANT: Sure Edwards, can you please mention with your dates of travel?

USER: Sure, my desired travel dates are from Jan 04 to Jan 06.

ASSISTANT: May I know your class preference please?

USER: My class preference is economy.

ASSISTANT: Ok, do you have any airline preference please?

USER: My airline preference is normal-cost.

ASSISTANT: Please wait for a moment.

USER: Sure, I will wait for your response.

ASSISTANT: Sorry, there is no flight found with your travelling details.

USER: No problem, thank you for your information.

ASSISTANT: You are welcome.