You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Patrick Perez.

ASSISTANT: How may I help you?

USER: Can you please help me in booking a flight ticket from HOU to SEA?

ASSISTANT: Sure, tell me your travel dates please?

USER: I am planning to depart on Apr 07 and return on Apr 09.

ASSISTANT: Please wait. Thanks for your patience. I have found Delta airlines which flies with one connection.

USER: Ok, Is this flight having return time in afternoon?

ASSISTANT: Sorry there are no flights available in the afternoon time.

USER: Ok, no problem. Thank you for the information.

ASSISTANT: Thank you.