You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Pamela Johnson here.

ASSISTANT: How can I assist you today?

USER: I would like to attend a business meeting in Chicago, can you please reserve a flight ticket from DEN to ORD?

ASSISTANT: Ok, may I know your travelling dates?

USER: Thank you, my departure is on July 01 and please book my return ticket also on July 03.

ASSISTANT: Please tell me your depart and arrival timings?

USER: I would like to return at morning time.

ASSISTANT: May I know your connection limit?

USER: I will prefer single connection for my journey. That's all my preferences.

ASSISTANT: Sorry, flights found on your route.

USER: Oh! Sad to hear that. Anyway, I will find another alternative. Thank you for the information.

ASSISTANT: Thank you for reaching us.

USER: Welcome.