You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how may I help you today?

USER: I want to book a flight ticket from Oakland, OAK to reach Chicago, ORD. Can you help me with booking connecting flight?

ASSISTANT: Sure we are happy to help you.

USER: Thank you.

ASSISTANT: May I know your departure and return date?

USER: I want to depart on 05/05 and return on 05/07.

ASSISTANT: May I know your good name?

USER: Sure, Lisa Evans is my name.

ASSISTANT: Thank you for your details, there are no flights found by the specified dates.

USER: Ok, not a problem. Thanks for your help.

ASSISTANT: Thank you for making us to support you.