You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Nancy Young.

ASSISTANT: Young, how may I render you today?

USER: I am planning to visit Museum of Nature and Science at Denver, could you please help me with booking a flight ticket from Houston?

ASSISTANT: Sure, I am mirthful to help you. May I know your travel dates please?

USER: I would like to take off on 06/21 and return on 06/23.

ASSISTANT: Ok, may I know your airport codes please?

USER: My source airport code is IAH and destination airport code is DEN.

ASSISTANT: Ok, hold on for a moment. Let me check the best flight for you.

USER: Sure, take your time.

ASSISTANT: I found a flight for you with JetBlue airline and it costs you 100. Shall I proceed to reserve a seat in this particular airline?

USER: Please confirm the booking if the connection is 1.

ASSISTANT: Your ticket has been booked with 1001 flight number with single connecting flight.

USER: I really appreciate your help, thank you for your service.

ASSISTANT: Welcome, thank you for choosing us. Have a safe flight.