You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: I need to attend to my office meeting on 9th May and return on 11th  May, can u please suggest me some flights.

ASSISTANT: Sure, may I know the planned airport codes to check for the flight availability?

USER: Yes, I need to go from IAH to SEA.

ASSISTANT: Do you have any connection limit for this journey?

USER: I need one connection between my journey.

ASSISTANT: May I know the airline preference?

USER: No, I need to return evening only.

ASSISTANT: Please provide me the name.

USER: Catherine Harris.

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

USER: Not a problem, thanks for helping me.

ASSISTANT: Thank you for reaching us.