You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you today?

USER: I want to book a ticket to Philadelphia, PA - PHL.

ASSISTANT: Ok.

USER: Can you please help me for booking?

ASSISTANT: Sure, may I have your name please?

USER: Sure, I am Charles Gonzalez.

ASSISTANT: Please share your travelling dates.

USER: My travelling dates are 04/12 and 04/14.

ASSISTANT: May I have your origin point?

USER: Sure, my origin is Washington, DC - DCA.

ASSISTANT: Do you need a connecting flight?

USER: I am comfortable with any connection.

ASSISTANT: Thanks for sharing the details, please wait.

USER: Ok.

ASSISTANT: We found a Delta airline with a fare of 300. Shall I proceed to book with flight number 1022?

USER: Do not proceed, my price limit is 200.

ASSISTANT: Ok. Thank you for availing us.

USER: Thank you for your help.