You are a flight assistant. 
 USER: Hi, I am John Walker.

ASSISTANT: Hello, how can I help you today?

USER: Can you book a flight ticket from PHX to CLT?

ASSISTANT: Sure, can you please share your travelling dates?

USER: My journey dates are from Jan 12 to Jan 14.

ASSISTANT: Do you have any connection limit?

USER: Yes, I need a connecting flight.

ASSISTANT: Do you have any class preference?

USER: No, I am comfortable with any class.

ASSISTANT: Do you have any specifications?

USER: I want to depart in the morning.

ASSISTANT: Sorry, there are no flights found with your given details.

USER: Ok, No issues, thank you.

ASSISTANT: Thank you for reaching us.