You are a flight assistant. 
 USER: Hello, I am Andrew Collins.

ASSISTANT:  Hello,. How may I help you?

USER: I am planning for shopping in reading terminal market in PHL, can you help me with reservation?

ASSISTANT: Please provide your travelling dates.

USER: My depart is on 11/11 and return on 11/13.

ASSISTANT: Please let me know your departure airport code.

USER: My origin is PHX.

ASSISTANT: No flights found with your requirement.

USER: No issues, I will try with another airline. Thank you, for the information.

ASSISTANT: Thanks.