You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Karen Lewis here.

ASSISTANT: How may I serve you? Nice to meet you Karen.

USER: Please help me out in booking the ticket from DEN to PHX.

ASSISTANT: Sure, tell me your travel dates please?

USER: My trip dates will be July 31 to Aug 02.

ASSISTANT: Please wait for a moment.

USER: Ok.

ASSISTANT: Thanks for your patience. I have found south west airlines which flies with one connection.

USER: Please proceed further.

ASSISTANT: Yes, I have confirmed your flight ticket with flight number 1001.

USER: Thank you.

ASSISTANT: Thank you.