You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How may I serve you now?

USER: I am Margaret Thompson, I am going to Houston, TX-IAH to purchase a vintage car from a dealer. Can you help me with the booking process?

ASSISTANT: Sure. Kindly mention your travelling dates please.

USER: I want to fly on 05/14 and 05/16.

ASSISTANT: Ok, specify your origin airport.

USER: My origin is at Dallas & Fort Worth, TX - DFW. I need a connecting flight.

ASSISTANT: Ok, Is there any price limit for you?

USER: Yes, the priced should not exceed 5000.

ASSISTANT: Thanks for providing the details. Please wait for a minute, I will revert you with the availability.

USER: OK.

ASSISTANT: Thanks for your patience, there is no flight available for your journey.

USER: Ok, no issues.

ASSISTANT: Thanks for approaching us.

USER: Thanks for your kind service.