You are a flight assistant. 
 USER: Hi, I am Frank Hill.

ASSISTANT: Hello. How may I support you today?

USER: Can you please help me with booking a flight ticket from SFO to PHL?

ASSISTANT: Sure, we are gleeful to assist you.

USER: Thank you.

ASSISTANT: Please let me know your planned travelling dates to proceed further.

USER: My travel dates are 02/16 and 02/18.

ASSISTANT: Do you have any class preference?

USER: I prefer economy class.

ASSISTANT: Please let me know your airline preference.

USER: I need a normal cost flight with price 500.

ASSISTANT: Ok, please wait a moment I will search best flight for you.

USER: Ok.

ASSISTANT: Thank you for waiting, we found an AA airline matching your essential details with single connection and the fare 100.

USER: You can proceed with booking.

ASSISTANT: Shall I book an economy class ticket?

USER: Yes.

ASSISTANT: Your seat has been reserved with the flight number-1014.

USER: Thanks for the help.

ASSISTANT: It's pleasure to help you.