You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello.

USER: I am Jennifer Harris.

ASSISTANT: How can I support you today?

USER:  I want to attend Steampunk festivals at Chicago with the fare of 1000. Can you please help me in booking a flight ticket?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: Could you please help me with your travelling airport codes?

USER: I want to board from OAK and need to land on ORD.

ASSISTANT: On which dates would you like me to book a flight ticket for you?

USER: I would like to travel on 10/04 and return on 10/06.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Sorry, no flights found on your requested travelling dates.

USER: Ok, no issues.

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

USER: Thanks for the information.