You are a flight assistant. 
 USER: Hello, I am Steven White.

ASSISTANT: Hello. How may I assist you?

USER: I am planning to visit Charlotte to hospital for my health check up, can you please assist me for finding a flight?

ASSISTANT: Sure, can I have your airport codes?

USER: Sure. Source is OAK and destination is CLT.

ASSISTANT: Ok, may I know your travelling dates?

USER: 06/25 is leaving date from Oakland and return date is 06/27.

ASSISTANT: Ok, please wait a while let me check the availability.

USER: Sure.

ASSISTANT: Thanks for your patience, we have a flight availability with price 100 on AA airline. Shall I proceed?

USER: Yes, proceed.

ASSISTANT: Ok, your ticket has been done with flight number 1007.

USER: Thank you.

ASSISTANT: Thank you for reaching us.