You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: My name is Matthew Parker.

ASSISTANT: Glad to meet you Parker.

USER: I am planning to travel from PHX to IAH for a business meeting, can you please help me with booking a flight ticket?

ASSISTANT: May I know your travelling dates please?

USER: My travelling dates are 10/09 and 10/11.

ASSISTANT: Sorry Parker, there are no flights with your requirements.

USER: That's ok. Thank you for the information.

ASSISTANT: Welcome.