You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: Can you please book a ticket from PHL to ORD to meet my friend?

ASSISTANT: Sure, can you share your trip dates?

USER: My travelling dates are Aug 20 and Aug 22.

ASSISTANT: Do you have any preferences?

USER: I want single connection.

ASSISTANT: May I know your name?

USER: I am Melissa Baker.

ASSISTANT: There is a connecting flight with number 1016 in airline Delta, the fare is 100 in economy. Can I book it?

USER: Yes, please proceed.

ASSISTANT: Your ticket is reserved.

USER: Thank you.

ASSISTANT: Thank you for reaching us.