You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Michelle Jones here.

ASSISTANT: How may I help you, Jones?

USER: I have to attend my friend's birthday party in Denver, can you please help me to book my ticket from HOU?

ASSISTANT: Please help me with your destination airport code.

USER: My destination airport code is DEN.

ASSISTANT: Can you please share your journey dates?

USER: I would like to depart on 03/05 and return back on 03/07.

ASSISTANT: Please wait a moment.

USER: Sure.

ASSISTANT: Jones, no flights has been found on your requested dates of journey.

USER: Very sad to hear that, thank you for the information.

ASSISTANT: Thank you for choosing us.