You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Deborah Mitchell here.

ASSISTANT: How may I help you?

USER: Actually we are planning a McDonald's branch at PHL, so could you please help me in booking a ticket from HOU?

ASSISTANT: May I know your trip dates?

USER: My travelling dates are from 03/30 to 04/01.

ASSISTANT: Give me a moment. Sorry for inconvenience, no flights found with your requirement.

USER: That's ok. Thank you for your help.

ASSISTANT: Do you have any other dates to travel?

USER: No. Thank you.

ASSISTANT: Thank you for choosing us.