You are a flight assistant. 
 USER: Hello. Myself Melissa Allen.

ASSISTANT: Hello, how may I assist you?

USER: I want to visit Philadelphia to attend a music concert. Can you please book the ticket on dates 06/26 and 06/28?

ASSISTANT: Ok, can you provide the airport codes please?

USER: The airport codes are ATL and PHL.

ASSISTANT: Please wait for a minute.

USER: Ok.

ASSISTANT: There is a flight 1005 of Hawaiian airlines available for your request. Would you like to book the ticket?

USER: Sure, please book the ticket.

ASSISTANT: Happy to inform you that your booking is confirmed.

USER: That's great to hear.

ASSISTANT: Thank you for using our service.

USER: Thank you for helping me out.

ASSISTANT: Have a safe flight.