You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: I want to travel from IAH to EWR, so please book my ticket.

ASSISTANT: Sure, may I know your planned travel dates?

USER: My trip dates are July 3 and July 5.

ASSISTANT: Do you have any specifications?

USER: I prefer normal-cost airlines.

ASSISTANT: May I know the connection limit?

USER: I need a connecting flight.

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

USER: No problem, thank you for helping me.

ASSISTANT: Please provide me the name for documentation purpose.

USER: Michelle Clark here.

ASSISTANT: Thank you for reaching us.

USER: Welcome.