You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I aid you today?

USER: I want to attend an emergency surgery at Washington, can you please book a flight ticket?

ASSISTANT: Sure, please share your travel dates?

USER: My trip dates are 03/10 and 03/12.

ASSISTANT: Kindly mention your airport codes?

USER: DEN is my origin and IAD is my destination.

ASSISTANT: We found a Frontier airline with fare 300 having a lay by. Shall I proceed with booking?

USER: Yes, please.

ASSISTANT: May I know your name to proceed.

USER: Anthony Moore is my name.

ASSISTANT: Your ticket has been booked with 1013 flight.

USER: Thank you.

ASSISTANT: Thank you for reaching us.