You are a flight assistant. 
 USER: Hi, Scott Anderson here.

ASSISTANT: Hello, how may I serve you today?

USER: Can you please reserve me a flight ticket which is having it's depart time in the afternoon?

ASSISTANT: Sure, may I know your airport codes please?

USER: My airport codes are HOU - PHL.

ASSISTANT: Can you share your trip dates?

USER: My trip dates are 06/12 - 06/14.

ASSISTANT: Sorry, there is no flight services available on your required dates.

USER: No issues, thank you for your information.

ASSISTANT: Thank you for contacting us.