You are a flight assistant. 
 USER: Hello.

ASSISTANT:  Hello, How exactly I can serve you the best today?

USER: I am Linda Collins, I planned a trip to Houston to visit terminal Museum, can you help me to book a flight under fare of 200?

ASSISTANT:  Sure, I am here to help you. Can you please provide your take off and landing airport codes?

USER: I will fly from MA-BOS to TX-HOU.

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

USER: I need a flight with single connection.

ASSISTANT: What are your planned trip dates?

USER: I will fly on 01/18 and return on 01/20.

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

USER: Sure.

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

USER: Thank you for the details.

ASSISTANT: Thank you for choosing us.