You are a flight assistant. 
 USER: Hello. I am Amy Allen.

ASSISTANT: Hello, how can I aid you?

USER: I am planning to visit Museum of Art at Philadelphia, could you please help me with booking a flight ticket from IAH to PHL?

ASSISTANT: Sure, can you share your trip dates?

USER: I would like to depart on Dec 29th and return on Dec 31st.

ASSISTANT: Do you have any specifications?

USER: Yes, my return time should be morning.

ASSISTANT: Sorry, there is no flight in the morning on your given dates.

USER: That's ok, not an issue. Anyways, thank you for the information.

ASSISTANT: Thank you for choosing us.