You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Amy Thompson.

ASSISTANT: How may I help you?

USER: Actually I want to visit my friend's home.Can you book a ticket for me?

ASSISTANT: Sure.

USER: My source and destination is DC-IAD to PA-PHL.

ASSISTANT: Could you tell me your travelling dates?

USER: My travelling dates are 03/23 to 03/25.

ASSISTANT: OK. I had found a flight ticket for your requirement.the price is 200 and number of connection is 1. Can I proceed?

USER: OK.

ASSISTANT: Your ticket has been booked.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.