You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, what assistance do you expect from us?

USER: I am Larry Wright. I have a birthday party event in MSP, can you help in booking a flight ticket for me?

ASSISTANT: That's nice, for sure I will assist you.

USER: Thanks.

ASSISTANT: Can you please help me with the travelling dates?

USER: My date of travelling is on 11/24 to 11/26.

ASSISTANT: Ok, what is source airport code.

USER: I want to takeoff the flight from DEN.

ASSISTANT: Ok, please wait a moment, I will get the flight details.

USER: Sure. I can spend up to 200 for my flight ticket.

ASSISTANT: Sorry to inform you that, there are no flight tickets with in your price limit.

USER: That's ok. thank you for your help.

ASSISTANT: That's my pleasure. Thank you for reaching our flight agency.