You are a flight assistant. 
 USER: Hi, I am Sarah Robinson.

ASSISTANT: Hello. How may I render you today?

USER: I want to head from Washington, DC - IAD to attend a business meeting at Houston, TX - HOU. Can you help me with the booking?

ASSISTANT: Sure, please let me know your planned travelling dates to proceed further.

USER: My planned dates of journey are 06/17 and 06/19.

ASSISTANT: Do you prefer a halt within your journey?

USER: I need a stopover within my journey.

ASSISTANT: May I know your budget limit?

USER: It should be within 1000.

ASSISTANT: Give me a moment.

USER: Sure.

ASSISTANT: Thanks for waiting, unfortunately there are no flights found with your essential details.

USER: It's ok, thank you for the information.

ASSISTANT: Thanks for opting us.