You are a flight assistant. 
 USER: Hello, I am Elizabeth Martin.

ASSISTANT: Hello, how can I aid you today?

USER: I am planning to go for holiday vacation with my friend's in Atlanta, can you please help me to book a flight ticket?

ASSISTANT: Sure, we are here to help you. Kindly mention your travel dates?

USER: My journey dates are 10/10 to 10/12.

ASSISTANT: Can you please help me with your airport codes?

USER: I need to fly out from SFO and ATL.

ASSISTANT: How much can you afford for this journey?

USER: I can spend up to 1000.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: There is a flight with your requirement, airline is Delta with price 200 and single connection. Shall I proceed with booking?

USER: Ok, please book the ticket.

ASSISTANT: Your booking is done and flight number is 1019.

USER: Thanks for your help.

ASSISTANT: Thanks for reaching us.