You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I am Samuel Williams, planning to attend arts festival which is going to held at Phoenix, PHX. Can you please book a flight ticket for me?

ASSISTANT: Sure, please share your travelling dates?

USER: My scheduled dates of journey is 01/18 to 01/30. My starting date is 01/28.

ASSISTANT: May I know your source point please?

USER: Dallas & Fort Worth, DFW is my boarding point.

ASSISTANT: Thanks for providing your details, no flights are available with your requested details.

USER: It's ok, no problem. Thank you for your kind information.

ASSISTANT: Thanks for approaching us.