You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Cynthia Green.

ASSISTANT: How can I assist you today?

USER: I would  like to book a ticket to Las Vegas, can you please help me out?

ASSISTANT: Sure, will you mention your travelling dates please?

USER: I am travelling on these dates 04/27 and 04/29.

ASSISTANT: Please mention your airport codes that you want to travel.

USER: I am flying from PHL to LAS.

ASSISTANT: Please give me a moment.

USER: Sure. Make sure my connection limit is 1.

ASSISTANT: There is no flights found under your preferable details.

USER: Ok no problem, thank you for your services.

ASSISTANT: Welcome, have a great day.