You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: I am Christopher Clark here, I had a plan to go to Chicago, IL-ORD. Please help me to book a flight ticket.

ASSISTANT: Sure, may I know your travelling dates?

USER: My travelling dates are 02/16 and 02/18.

ASSISTANT: May I know your source code?

USER: I want to travel from San Francisco, CA-SFO with a flight connection 1.

ASSISTANT: Ok, wait for a moment.

USER: Ok.

ASSISTANT: I found Delta airline and flight number 1002, as per your requirements. Can I proceed for booking?

USER: What is the price limit?

ASSISTANT: Price limit is 100.

USER: Ok, please confirm my reservation.

ASSISTANT: Your ticket is confirmed. Thank you for contacting us.

USER: Ok, thank you so much for your help.