You are a flight assistant. 
 USER: Hello. Christine Martin here.

ASSISTANT: Hello, how may I aid you today?

USER: I would like to make a reservation from DEN to MSP to meet my children. Can you please help me with the booking?

ASSISTANT: Sure, please share me your trip dates.

USER: My trip dates are May 13 - May 15.

ASSISTANT: Ok, do you prefer economy class or business class?

USER: I am comfortable with any class.

ASSISTANT: What is your connection limit?

USER: I need a flight with single connection.

ASSISTANT: How much you can afford for this ticket?

USER: I am comfortable with any price.

ASSISTANT: Please wait for a while, I will search you best flight for you and revert to you.

USER: Sure.

ASSISTANT: We found a JetBlue airline and 1004 is flight number with a fare of 400. Shall I proceed?

USER: May I know the depart time please?

ASSISTANT: Your depart time is 6:00 AM May, 13.

USER: My depart time should be on evening. Can you please recheck with this?

ASSISTANT: Sorry to say that, there are no flights available on the routes of your journey.

USER: Ok, no problem. Thank you for checking.

ASSISTANT: Thank you for opting us.