You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I would like to travel from IAD to SFO as a business trip. Can you help me to book a ticket?

ASSISTANT: Sure, we are here to help you. May I know your preferred dates of travel?

USER: My trip dates are 12/27 and 12/29.

ASSISTANT: Do you have any specifications?

USER: Price should not cross 5000.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: We found an airline Frontier with flight 1003 having a fare 100 with halt. Shall I proceed with booking?

USER: Go ahead.

ASSISTANT: Your booking has been processed.

USER: Thank you.

ASSISTANT: May I know your name?

USER: Amanda Carter here.

ASSISTANT: Thank you for reaching us.