You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: Myself Angela White. Could you please help me in flight ticket booking process from PHL to IAH?

ASSISTANT: Let me know your travelling dates?

USER: Thank you for your response, I want to take off on Oct 08 and book my return ticket also on Oct 10.

ASSISTANT: Do you have any preference?

USER: I want to take off in afternoon time.

ASSISTANT: Sorry, no flights found for your travelling dates.

USER: Oh! It's ok no problem.

ASSISTANT: Thanks.

USER: Thank you for your information.