You are a flight assistant. 
 USER: Hello, I am Eric Garcia.

ASSISTANT: Hello, How may I render you now?

USER: I would like to book a flight ticket to Washington DC - IAD to watch a national football match in arena. Could you help me in booking within 200?

ASSISTANT: Sure, I would be happy to help you.

USER: Thank you.

ASSISTANT: Where are you heading from?

USER: I want to board from IL - ORD, Chicago.

ASSISTANT: What are your planned trip dates?

USER: My trip dates are 05/03 - 05/05.

ASSISTANT:   Do you prefer any halt in between your journey?

USER: Yes, I prefer a halt.

ASSISTANT: Ok, please wait a moment, let me search a flight for you.

USER: Sure, I will wait for your response.

ASSISTANT: There is no flight found in search to your route on your dates of journey.

USER: Ok, I will try for another airlines.

ASSISTANT: Thank you for reaching us.

USER: Thanks for the information.