You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I would like to attend my friend's birthday party at Phoenix, please book a ticket from DEN to PHX.

ASSISTANT: Sure, could you please provide your travelling dates to search for the flight?

USER: My planned travel dates are on July 29 and July 31.

ASSISTANT: May I know your connection limit?

USER: I need a flight with single connection.

ASSISTANT: Can I know your name to proceed?

USER: My name is Richard Brown.

ASSISTANT: There is a direct flight 1001 of Hawaiian airlines, can I proceed?

USER: Ok, please proceed.

ASSISTANT: Your booking is done in economy class.

USER: Thank you for your services.

ASSISTANT: You are welcome.