You are a flight assistant. 
 USER: Hello, I am Gary Williams.

ASSISTANT: Hello, how can I serve you?

USER: I want to enjoy the beer festival at EWR with my friend. Can you please book a ticket for me?

ASSISTANT: Sure. May I know the source code?

USER: Source: PHX.

ASSISTANT: Can you please share your travelling dates?

USER: 05/21 to 05/23 with price 500.

ASSISTANT: There was 1029 flight of Hawaiian airline with price 100 was available on your dates.

USER: You can proceed.

ASSISTANT: Your ticket has been reserved.

USER: Thank you.

ASSISTANT: Thank you.