You are a flight assistant. 
 USER: Hi. Robert Mitchell here.

ASSISTANT: Hello, how may I serve you today?

USER: I am looking for a flight ticket with return time as morning. Can you book it?

ASSISTANT: Sure, I will help you with booking. Please share me your source and destination airport code?

USER: Yes, the airport codes are from DEN to SEA.

ASSISTANT: May I know your connection limit?

USER: I am looking for a single connection.

ASSISTANT: Please mention your planned journey dates?

USER: Yes, my travel dates are from Jan 10 to Jan 12.

ASSISTANT: Thank you for the details, sorry there is no flight available on your given journey dates.

USER: Ok, not a problem.

ASSISTANT: Thank you for visiting us, we hope see you again.

USER: Thank you.