You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Ruth Walker.

ASSISTANT: How may I assist you at this moment?

USER: I am planning to book a flight ticket from ORD to OAK to meet my friend. Can you help me for booking a flight ticket?

ASSISTANT: Sure, I am here to help you in booking. Could you please share your travel dates?

USER: My planning dates are from 07/11 till 07/13.

ASSISTANT: Please allow me a moment, let me check the flight availability.

USER: Make sure that my connection limit should be 1.

ASSISTANT: Sorry, no flights are available on your route.

USER: That's ok, thank you for checking.

ASSISTANT: Welcome, thank you for choosing us.