You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: Can you help me to book a direct flight from HOU?

ASSISTANT: May I know your itinerary dates please?

USER: My travelling dates are June 05 and 07.

ASSISTANT: Where you want to travel?

USER: My destination airport code is PHL.

ASSISTANT: Is there any another specifications on your trip, so that I can arrange like that only.

USER: I want to return at evening.

ASSISTANT: Can I know your name to proceed further?

USER: Sure, my name is George Hall.

ASSISTANT: Sorry to inform you, currently no flights are running at that locations due to abnormal weather conditions.

USER: No issues, thank you for your time.

ASSISTANT: Welcome George Hall.