You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: I am Mark Clark. I need to book a flight ticket from PHL to SFO, Can you please help me for booking?

ASSISTANT: Sure, can you share your journey dates?

USER: I would like to travel on 07/01 to return on 07/03.

ASSISTANT: Do you have any requirements?

USER: I need a connecting flight.

ASSISTANT: There is a connecting flight with number 1017 in airline Delta, the fare is 200 in economy class. Can I book it?

USER: Ok, proceed for booking.

ASSISTANT: Your ticket is reserved.

USER: Thanks for your information.

ASSISTANT: Thank you for reaching us.