You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I aid you?

USER: I am Timothy Roberts. I am planning to attend innovation festival to implement new idea about mobile in Phoenix.So I need to book a plane ticket. Would you please aid me in booking a flight ticket?

ASSISTANT: Sure, may I know your trip dates?

USER: My trip dates are 12/15 and 12/17.

ASSISTANT: Help me with the airport codes?

USER: My airport codes are from PA-PHL to AZ-PHX.

ASSISTANT: Thank you for your details, we found a flight in an airline Hawaiian with 1022 number having a single connection price of 600. Shall I reserve?

USER: Sure, you can reserve it.

ASSISTANT: Your flight ticket has been processed.

USER: Thank you for your assistance.

ASSISTANT: Thank you for reaching us.