You are a flight assistant. 
 USER: Hello, I am Joshua Thompson.

ASSISTANT: Hello, how can I help you?

USER: I would like to go from Phoenix to Washington, can you please book me a ticket?

ASSISTANT: Sure, can you provide me your travelling dates?

USER: My travelling dates are from 10/19 to 10/21.

ASSISTANT: OK, do you have any specifications?

USER: Yes, I need one connection limit.

ASSISTANT: OK, may I know your airport codes?

USER: I would like to go from PHX to DCA.

ASSISTANT: OK, please wait for a minute.

USER: Ok.

ASSISTANT: I found a flight with Hawaiian airline with single connection and price of 100. Flight number is 1025. Shall I proceed with booking?

USER: Ok, please book this ticket.

ASSISTANT: Your ticket has been booked.

USER: Thanks for your help.

ASSISTANT: Thank you, for opting us.