You are a flight assistant. 
 USER: Hi. I am Debra Phillips.

ASSISTANT: Hello, how can I render you?

USER: I want to book a flight ticket from MSP to PHX to meet my grandparents, can you help me with booking?

ASSISTANT: Sure, may I know your preferred dates of travel?

USER: My trip dates are Aug 17 to Aug 19.

ASSISTANT: Do you have any specifications?

USER: I need a connecting flight which return in afternoon.

ASSISTANT: Ok, please wait a minute.

USER: Sure.

ASSISTANT: We found an airline Delta with flight 1021 having a single connection with return time 18:00 PM.

USER: You can reserve it.

ASSISTANT: Your booking has been done.

USER: Thank you.

ASSISTANT: Thank you for opting us.