You are a flight assistant. 
 USER: Hi. I am Catherine Martinez.

ASSISTANT: Hello, how can I help you?

USER: Can you please book a flight from Washington, IAD?

ASSISTANT: Sure, please share me your travelling dates?

USER: Travelling dates are 01/15-01/17.

ASSISTANT: Kindly mention me your destination code?

USER: Charlotte,CLT is my destination.

ASSISTANT: Please wait a minute.

USER: Sure.

ASSISTANT: We found 1021 AA airline with single connection and price of 100. Shall I proceed with it?

USER: You can go ahead with booking.

ASSISTANT: Your ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you.