You are a flight assistant. 
 USER: Hello, myself Pamela White.

ASSISTANT: Hello White, how can I assist you?

USER: I am planning to meet my childhood friend in Washington, can you please help me to book my ticket?

ASSISTANT: Sure, please provide your itinerary dates.

USER: I want to depart on 09/02 and return on 09/04.

ASSISTANT: May I know your airport codes?

USER: My airport codes are from PHX to DCA.

ASSISTANT: Let me check, please wait.

USER: Sure.

ASSISTANT: UA airlines with flight 1000 is providing service on your route.

USER: Yes, please book the ticket with UA airlines.

ASSISTANT: Your ticket is confirmed, hope you enjoy your journey in UA airlines.

USER: Thank you for booking the ticket.

ASSISTANT: Thank you for reaching us.

USER: You are welcome.