You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: I am planning to book a flight ticket to ORD from IAH, can you please help me out?

ASSISTANT: Sure, may I know the planned travel dates to check for the flight availability?

USER: Sure, my planned travelling dates are Apr 11 and Apr 13.

ASSISTANT: Please provide me the specifications.

USER: Yes, I am looking for a flight with 1 connection.

ASSISTANT: May I know the name to reserve the ticket?

USER: Sure, my name is Rebecca Baker.

ASSISTANT: Sorry, there are no flights are available for your desired intent.

USER: It's ok, thank you for the information.

ASSISTANT: Thank you for reaching us.