You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: Can you help me to book a flight from PHL to LAS?

ASSISTANT: Please provide me your itinerary travel dates.

USER: My travel dates are May 18 and 20.

ASSISTANT: Could you let us know if you have any class preference?

USER: No.

ASSISTANT: Is there any connection limit?

USER: No.

ASSISTANT: Are there any more preferences that you want to avail?

USER: No, I don't have any preferences.

ASSISTANT: May I know your name please?

USER: Susan Anderson here.

ASSISTANT: Give me a moment.

USER: Sure.

ASSISTANT: DElta Airlines with flight 1011 is providing service on your route with connecting flight and the cost is 100.

USER: Please proceed.

ASSISTANT: Your ticket is booked where departure PHL 10:00 hours May 18 and arrival LAS 0:00 hours May 20.

USER: Thanks for the support.