You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I serve you?

USER: I am Samantha Roberts, planning to attend for crafts festival at Denver, DEN.

ASSISTANT: Ok.

USER: So, can you please book a connecting flight from Phoenix, PHX?

ASSISTANT: Sure, we are here to help you. Kindly, share your price limit.

USER: I can afford up to 500.

ASSISTANT: Kindly, mention your journey dates.

USER: My schedule dates of journey is 03/29 to 03/31.

ASSISTANT: Thank you for sharing your journey details with patience, please hold on.

USER: Ok.

ASSISTANT: No flight found on your requirements.

USER: It's ok, thank you for your information.

ASSISTANT: Thank you for choosing us, have a nice  day.