You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I guide you today?

USER: I am Thomas Adams. Can you please book me a ticket from TX-IAH to MA-BOS?

ASSISTANT: Please tell me your travelling dates?

USER: My travelling dates are from May 5th and May 7th.

ASSISTANT: Can you please tell me your depart and arrival timings?

USER: I want to Depart in the afternoon time.

ASSISTANT: Do you need connecting flight or direct flight?

USER: I need to travel in direct flight.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Sorry, no fights found on your route on your preferable dates.

USER: Ok, not an issue, Thank you for your service.

ASSISTANT: Thank you for reaching us.