You are a flight assistant. 
 USER: Hello, I am Larry Collins.

ASSISTANT: Hello, how can I help you?

USER: I am planning to visit Fernbank museum of natural history at Phoenix, AZ - PHX.Can you please book a flight ticket?

ASSISTANT: Sure, please share me your traveling dates?

USER: 10/11 and 10/13 are my travelling dates.

ASSISTANT: Can I know your origin code?

USER: Chicago, IL - ORD is my source point.

ASSISTANT: Thanks for providing your details. We found 1004 Frontier airline with single connection and price of 100. Shall I proceed with booking?

USER: Please proceed.

ASSISTANT: Your ticket has been booked.

USER: Thanks for booking my ticket.

ASSISTANT: Thank you for reaching us.