You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Edward Thompson.

ASSISTANT: How could I aid you today?

USER: Can you please book a flight ticket from IAH to MSP?

ASSISTANT: When you are planning to depart and arrive?

USER: I have planned to travel on dates of Nov 07 and Nov 09.

ASSISTANT: Do you want to fly with economic class or business class?

USER: I am ok with any class.

ASSISTANT: Can you please share me your budget for flight ticket?

USER: Sure, I can afford 1000 for my ticket booking.

ASSISTANT: Please wait a moment, let me check and revert to you.

USER: Sure, I will wait for your response.

ASSISTANT: Unfortunately there are no flights are running on your route according to your given information.

USER: Oh! It is sad to hear. Anyway, thank you for your time.

ASSISTANT: Thank you for opting us.