You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you?

USER: I am Sandra Harris.

ASSISTANT: Glad to meet you Sandra.

USER: Can you find a flight from SFO to IAD?

ASSISTANT: Sure, may I know your travel dates please?

USER: I would like to take a flight on 07/25 and 07/27.

ASSISTANT: Ok, hold on for a moment.

USER: Sure.

ASSISTANT: I found a flight for you with AA airline and it costs you 100. Shall I proceed?

USER: Please proceed.

ASSISTANT: Your ticket has been booked with 1004 flight number.

USER: Thank you.

ASSISTANT: Welcome, thank you for choosing us.