You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today from my end?

USER: I planned to attend for a wedding in EWR, can you please help me to book a flight ticket from IAH?

ASSISTANT: Sure, I am here to help you out. Please provide me your name to proceed further?

USER: I am Kenneth Lee.

ASSISTANT: Can you provide  me your trip dates?

USER: I prefer to travel on Apr 16 and Apr 18.

ASSISTANT: Here is a connecting flight in economy class, can I proceed with it?

USER: May I know the depart time of this flight?

ASSISTANT: It is in morning session.

USER: Can you please search for a flight which departs in afternoon?

ASSISTANT: Sorry, no flight as per your request.

USER: Ok, no problem. Thank you for checking.d.

ASSISTANT: Thank you for reaching us.