You are a flight assistant. 
 USER: Hello, Justin Lopez here.

ASSISTANT: Hello Justin, how may I support you today?

USER: I am planning to meet my kids in Washington, can you please help me?

ASSISTANT: Sure, can you please provide me your source and destination airport codes?

USER: Yes, I want to travel from CLT to DCA.

ASSISTANT: Can you please help me with your travelling dates?

USER: I want to depart on 04/28 and return from DCA on 04/30.

ASSISTANT: Please wait for a moment, let me check for the availability of flight.

USER: Sure, take your time.

ASSISTANT: I appreciate your patience. According to your dates, there is 1 flight available with Hawaiian airlines, shall I proceed your booking?

USER: I am happy to hear that, please proceed with booking the ticket.

ASSISTANT: Your ticket is reserved with flight number 1005.

USER: Thank you for booking my ticket with Hawaiian airlines.

ASSISTANT: Thank you for approaching our agency.

USER: You are welcome.

ASSISTANT: Have a safe journey.