You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: Here Mary Lewis. Can you please help me in flight ticket booking from SFO to DCA location to meet my friend?

ASSISTANT: Sure, can you please share your travel dates?

USER: Thank you and my planned travel dates are Dec 14th and arrival back on Dec 16th.

ASSISTANT: Do you have any class preference?

USER: No.

ASSISTANT: Mary Lewis, there is a flight available with price 100 and the connection is 1 with Spirit airline. Would you like me to proceed with the booking?

USER: Yes, you can confirm my flight ticket booking.

ASSISTANT: Your booking is confirmed with 1009 flight number.

USER: Thank you for booking my flight ticket in quick manner.

ASSISTANT: You are welcome. Thank you for reaching us.

USER: Welcome.