You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Michael Phillips.

ASSISTANT: How may I best serve you today?

USER: I want to book a flight ticket to visit Death Valley Adventure in Chicago. Will you assist me in booking a flight ticket on 04/14?

ASSISTANT: Sure, we are pleased to help you.

USER: Thank you.

ASSISTANT: For booking process we need your preferred airport codes, please share me that.

USER: My boarding point is Detroit DTW and destination point is Chicago ORD.

ASSISTANT: When do you have planned to return from Chicago?

USER: I intend to return from Chicago on 04/16.

ASSISTANT: At what price range are you looking for?

USER: I can pay up to 200.

ASSISTANT: Are you prefer direct flight or connecting flight?

USER: I need a connecting flight.

ASSISTANT: I am sorry to say that unfortunately there is no connecting flight.

USER: Ok, no issues.

ASSISTANT: Thank you.

USER: Thank you.