You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: For my favorite singer's concert, I want to go Phoenix PHX. So, please can you book my ticket from OAK?

ASSISTANT: Definitely, can I have your planned dates of travel?

USER: Concert is held on 08/08 . So, I want to travel from 08/07 to 08/09.

ASSISTANT: Please let me check for the best flight service for you.

USER: Sure, take your own time.

ASSISTANT: There is a flight available from UA airline, ticket price is 100 only, is that ok for you?

USER: Yes, you can proceed with this.

ASSISTANT: May I know your name?

USER: Myself John Johnson.

ASSISTANT: I have booked your ticket successfully with flight-1005, have a great journey.

USER: Thank you.

ASSISTANT: My pleasure.