You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

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

ASSISTANT: Sure, Can you share me your travelling dates?

USER: My preferable are 08/11 and 08/13.

ASSISTANT: May I know your name?

USER: My name is Kathleen Robinson.

ASSISTANT: Ok, wait for some time.

USER: Ok.

ASSISTANT: We found Frontier airline with connecting flight and number 1025 fare of 200.

USER: Proceed with booking.

ASSISTANT: Your ticket has been confirmed.

USER: Thank you.

ASSISTANT: Thanks for choosing us.