You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Betty Evans.

ASSISTANT: How can I help you today?

USER: I would like 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 g;lad to help you in booking. Can you please share your travel dates?

USER: My travelling dates are 06/19 and 06/21.

ASSISTANT: Please wait a moment.

USER: Sure, I will wait for your response.

ASSISTANT: Sorry, no flights are available on your particular dates.

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

ASSISTANT: Thank you for reaching us, have a nice day.

USER: Welcome.